Research Article |
Corresponding author: Norman F. Johnson ( baeus2@yahoo.com ) Academic editor: Michael S. Engel
© 2016 Roger A. Burks, Lubomír Masner, Norman F. Johnson, Andrew D. Austin.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Burks RA, Masner L, Johnson NF, Austin AD (2016) Systematics of the parasitic wasp genus Oxyscelio Kieffer (Hymenoptera, Platygastridae s.l.), part III: African fauna. ZooKeys 565: 29-71. https://doi.org/10.3897/zookeys.565.7185
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African species of Oxyscelio (Hymenoptera: Platygastridae s.l.) are revised. A total of 14 species are recognized, 13 of which are described as new: O. absentiae Burks, sp. n., O. galeri Burks, sp. n., O. gyri Burks, sp. n., O. idoli Burks, sp. n., O. intensionis Burks, sp. n., O. io Burks, sp. n., O. kylix Burks, sp. n., O. lunae Burks, sp. n., O. nemesis Burks, sp. n., O. pulveris Burks, sp. n., O. quassus Burks, sp. n., O. teli Burks, sp. n. and O. xenii Burks, sp. n. The genus Freniger Szabó, syn. n. is recognized as part of an endemic African species group of Oxyscelio with incomplete hind wing venation, and O. bicolor (Szabó), comb. n. is therefore recognized as the only previously described species of Oxyscelio from Africa. The O. crateris and O. cuculli species groups, previously known from southeast Asia, are represented in Africa by seven and one species respectively.
Platygastroidea , Scelionidae , Oxyscelio , Scelioninae , key, revision, database, parasitoid
Oxyscelio Kieffer was first described to contain a single species of Scelioninae from Java (
Despite the diversity of Oxyscelio, very little is known of its life history. The host of Oxyscelio perpensus Kononova, an exposed orthopteran egg laid from an unknown species onto plant tissue, was photographed as part of its original description (
In this study we recognize 14 species of Oxyscelio from the Afrotropical realm, including 13 newly described species. Eight of these species are placed in species groups previously recognized from the Indo-Malayan realm. Four of the remaining species are placed in a uniquely African species group comprising the only species of Oxyscelio known to have incomplete hind wing venation, a feature that has most notably been found in other genera of Scelioninae, including Scelio Latreille, Sparasion Latreille, and Nixonia Masner. These species are determined to belong to Oxyscelio based on a single spur on both the mid and hind tibia, the presence of a facial submedian carina, and fore wing with a punctiform marginal vein and no pseudostigma (sensu
Specimens examined were provided by the following collections:
This revision is a product of the Platygastroidea Planetary Biodiversity Inventory, funded by the U.S. National Science Foundation (N.F. Johnson, Ohio State University; Andy Austin, University of Adelaide; Principal Investigators). An objective of this project is to use biodiversity informatics resources to accelerate taxonomic work, making real-time collaboration possible. Data associated with specimens examined in this study can be accessed at hol.osu.edu and entering the unique specimen identifier (e.g.
Surface sculpture terminology follows
“Microsculpture” refers to repeated tiny sculptural elements that do not interact with seta placement. Microsculpture can occur on “major” sculptural elements, such as on rugae and on all surfaces of foveae. “Punctate” microsculpture refers to tiny round pits that do not bear setae. “Granulate” microsculpture refers to sculpture that is similar to that of leather or skin, with areas enclosed by tiny grooves (= sunken septa). Microsculpture can occur in areas that lack setae.
Sculptural terms for repeated sculpture that are not included in the above categories are 1) “carinae” which refers to elevations that are sharp and not branched or wrinkled but do not repeat in a way that forms a pattern (excluding repeating due to bilateral symmetry), 2) “striae” which refers to repeated elevations that are not sharp and not branched or wrinkled. These sculptural elements do not interact with setiferous pit placement, but major sculptural elements can occur between them. While alternative logic may suggest that rugose sculpture is better classed within this category, this choice was avoided because rugose sculptural patterns did apparently interact with umbilicate sculptural patterns. For the occipital carina, “crenulate” means that short carinae radiate from the occipital carina. Certain carinae may be described using the phrase “wrinkle-like,” which replaces our previous words “as a ruga,” this change being done to make the terms more clearly descriptive.
Illustrations. Photographs were taken using a Synoptics Ltd. system using a Leica Z16 APO microscope and a JVC KY-F75U 3-CCD camera. Source photos were stacked using Zerene Stacker version 1.04, or Auto-Montage Pro version 5.01.0005, and enhanced using Adobe Photoshop CS5 or CS6.
Phylogenetic analysis. A New Technology Search at initial level 95 was performed using TNT (Tree analysis using New Technology) version 1.1 (
Oxyscelio
Freniger
The phylogenetic analysis performed with a select group of characters (Fig.
These results indicate that recognition of the genus Freniger (with F. bicolor as type) would make the genus Oxyscelio paraphyletic. Our understanding of relationships among all Oxyscelio species is insufficient to suggest a robust reclassification of these into monophyletic taxa. Therefore, we opt to treat Freniger as a junior synonym of Oxyscelio.
These groups are provided here to indicate intuitively perceived structure within the genus, and to provide an aid for identification. They are succinctly diagnosed here. Some characters are omitted situationally from species group diagnoses because those characters are variable within the group or are otherwise unhelpful for that particular group’s identification. Individual species descriptions can be consulted regarding characters omitted from these diagnoses. The only uniquely African species group is the bicolor-group, which is defined by a character that is unique in Oxyscelio. Two other African species are not placed to group, and may represent important lineages as well (see below). The more lengthy species group diagnoses for the other groups in
Oxyscelio bicolor species group
Characteristics. Hyperoccipital carina absent or not connected to occipital carina. Hind wing vein (Sc+R) interrupted.
Comments. The bicolor-group contains species with a broadly interrupted hind wing vein (Sc+R). This feature is unique to this group within Oxyscelio, and previously has been used to help define the Scelionini, Nixoniini, and Sparasionini (
Contains: O. absentiae, O. bicolor, O. idoli, O. xenii.
Oxyscelio crateris species group
Characteristics. Hyperoccipital carina connected to occipital carina laterally. Hind wing vein (Sc+R) not interrupted.
Comments. The crateris-group also occurs in the Indo-Malayan realm, with species that have a slightly less pronounced “crater” on the occiput between the hyperoccipital and occipital carinae. A potential species complex within this group contains O. io, O. nemesis, and O. teli, which are vaguely similar in the shape of the head, body, hyperoccipital carina, and occipital carina. However, that grouping was not upheld by the phylogenetic analysis and could not be characterized with any consistently definable features.
Contains: O. gyri, O. io, O. lunae, O. nemesis, O. pulveris, O. kylix, O. teli.
Oxyscelio cuculli species group
Characteristics. Hyperoccipital carina present as a sharp carina but not connected to occipital carina laterally. Hind wing vein (Sc+R) not interrupted.
Comments. The cuculli-group also occurs throughout the Indo-Malayan realm, with species very similar to the only known African species.
Contains: O. galeri.
Species not placed to group
Included species: O. intensionis, O. quassus.
Comments. There is some general resemblance between O. intensionis and the Australian aciculae-group, but members of that group do not have a setose metasomal depression. Oxyscelio quassus has a setose metasomal depression, but lacks the important features of other species groups, resembling the bicolor-group but having a complete hind wing vein. The Indo-Malayan and Australian dasymesos-group differs from O. intensionis in occipital sculpture and in having sharp projections from the corners of T7. The dasymesos-group differs from O. quassus in having a complete mesoscutal median carina, and in having a very different (short and stout) body shape.
1 | Hind wing vein (Sc+R) incomplete, broadly interrupted between base and apex (Fig. |
2 |
– | Hind wing vein (Sc+R) complete (Figs |
5 |
2 | Metasomal depression setose (Figs |
3 |
– | Metasomal depression not setose (Figs |
4 |
3 | T1 without carinae between midlobe and lateral areas (Figs |
Oxyscelio xenii Burks, sp. n. |
– | T1 with one or more longitudinal carinae between midlobe and lateral areas (Figs |
Oxyscelio bicolor (Szabó) |
4 | Metascutellum much broader than long (Fig. |
Oxyscelio absentiae Burks, sp. n. |
– | Metascutellum about as broad as long (Fig. |
Oxyscelio idoli Burks, sp. n. |
5 | Metascutellum triangular, acuminate posteriorly (Fig. |
Oxyscelio galeri Burks, sp. n. |
– | Metascutellum not triangular, not acuminate apically (Figs |
6 |
6 | Metasomal depression setose (Figs |
7 |
– | Metasomal depression not setose (Fig. |
9 |
7 | Occipital carina medially flat (Fig. |
Oxyscelio nemesis Burks, sp. n. |
– | Occipital carina medially arched (Fig. |
8 |
8 | Hyperoccipital carina indicated by a set of complete wrinkle-like carinae (Fig. |
Oxyscelio intensionis Burks, sp. n. |
– | Hyperoccipital carina absent (Figs |
Oxyscelio quassus Burks, sp. n. |
9 | Mesoscutellum with some granulate sculpture (Figs |
10 |
– | Mesoscutellum without granulate sculpture (Figs |
12 |
10 | Frontal depression with median longitudinal carina-like elevation arising from interantennal process (Fig. |
Oxyscelio io Burks, sp. n. |
– | Frontal depression without median longitudinal carina-like elevation (Figs |
11 |
11 | Head and mesosomal dorsum with sharp carinae and less extensive granulate sculpture (Figs |
Oxyscelio lunae Burks, sp. n. |
– | Head and mesosomal dorsum with weak carinae and more extensive granulate sculpture (Figs |
Oxyscelio pulveris Burks, sp. n. |
12 | Occipital carina medially flat (Fig. |
Oxyscelio teli Burks, sp. n. |
– | Occipital carina arched or sinuate medially (Figs |
13 |
13 | Occipital carina with sharp lateral corners, connected to hyperoccipital carina laterally (Fig. |
Oxyscelio kylix Burks, sp. n. |
– | Occipital carina without lateral corners, not connected to hyperoccipital carina laterally (Fig. |
Oxyscelio gyri Burks, sp. n. |
Oxyscelio absentiae sp. n., paratype female (
Oxyscelio galeri sp. n., paratype male (
Oxyscelio intensionis sp. n., holotype male (
Oxyscelio nemesis sp. n., holotype female (
Oxyscelio pulveris sp. n., holotype female (
Oxyscelio teli sp. n., holotype female (
Oxyscelio xenii sp. n., holotype female (
Female. Body length 2.5–2.65 mm (n = 4).
Radicle color: same as scape. A4: broader than long. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 3 or more broadly interrupted transverse carinae; with 2–4 complete transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: rugose; umbilicate-punctate. Major sculpture of gena posteroventrally: umbilicate-punctate. Microsculpture of gena anteroventrally: granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: not indicated medially. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; umbilicate-punctate. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: steep. Mesoscutal median carina: absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: punctate. Microsculpture of mesoscutellum laterally: punctate. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: flat or convex. Metascutellar sculpture centrally: with longitudinal carinae. Metascutellar apex: deeply emarginate; shallowly emarginate. Metapleuron above ventral metapleural area: foveate or rugose. Lateral propodeal carinae antero-medially: strongly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: absent. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching middle of T5. Hind wing vein (Sc+R): interrupted.
Carinae between T1 midlobe and T1 lateral carina: present. T1 midlobe: obscured by other raised sculpture. T1: with long anterior bulge that reaches metascutellum. T6: longer than broad; as long as broad. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: absent; granulate.
Both sexes: Hyperoccipital carina absent. Gena with granulate sculpture anteroventrally and posteroventrally. Mesoscutellum without granulate sculpture. Metascutellum much broader than long. Metasomal depression not setose, without median carina; lateral propodeal carinae strongly diverging. Hind wing Sc+R interrupted. T1 with carinae between midlobe and lateral carina. Female: A4 broader than long; T1 midlobe with strong anterior horn.
Latin noun, genitive case, meaning “absence.”
Freniger bicolor
Female. Body length 3.15–3.55 mm (n = 5).
Radicle color: same as scape; darker than scape. A4: longer than broad. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 1–2 broadly interrupted transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate; rugose. Major sculpture of gena posteroventrally: rugose; umbilicate-punctate. Microsculpture of gena anteroventrally: granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; rugose. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent; granulate. Major sculpture of mesoscutellum: umbilicate-foveate; obliquely rugose. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: absent. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth; rugose. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: foveate or rugose. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: present. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching apex of T6; reaching beyond T6. Hind wing vein (Sc+R): interrupted.
Carinae between T1 midlobe and T1 lateral carina: present. T1 midlobe: with 6 or more longitudinal carinae. T1: without anterior bulge. T6: broader than long. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: granulate.
Male. Body length 3.15–3.4 mm (n = 7). A5 tyloid: carina-like, not expanded. A11: longer than broad. T1 midlobe: with 5 longitudinal carinae. Metasomal apex: with acuminate lateral corners.
Both sexes: Hyperoccipital carina wrinkle-like, not connected to occipital carina laterally or medially. Gena with granulate sculpture anteroventrally and posteroventrally. Mesoscutellum without granulate sculpture; without punctate sculpture between foveae. Metasomal depression setose, without median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R interrupted. T1 with carinae between midlobe and lateral carina. Female: A4 longer than broad; T1 without anterior horn.
Freniger Szabó represents an unusual species group of African Oxyscelio, with a broadly interrupted hind wing vein (Sc+R). The metasomal depression setae in this and some other African Oxyscelio are rarely found in species outside Africa – only in the two Asian and single Australian species of the dasymesos group.
Male. Body length 3.95–4.1 mm (n = 5).
Radicle color: same as scape. A5 tyloid: carina-like, not expanded. A11: longer than broad. Upper frons: hood-like, protruding over pedicel when antenna at rest. Frontal depression sculpture: without transverse or oblique carinae below submedian carina. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: umbilicate-punctate. Microsculpture of gena anteroventrally: granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: complete as a sharp carina. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; rugose. Occipital carina medially: sinuate with a more strongly arched median portion. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: present and complete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate; transversely rugose; obliquely rugose. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: granulate. Major sculpture of mesoscutellum: umbilicate-foveate; obliquely rugose. Microsculpture of mesoscutellum medially: granulate. Microsculpture of mesoscutellum laterally: granulate. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: with longitudinal carinae. Metascutellar apex: sharply acuminate. Metapleuron above ventral metapleural area: foveate or rugose. Lateral propodeal carinae antero-medially: strongly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: absent. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 4 longitudinal carinae. Metasomal apex: with no distinct corners.
Both sexes: Frontal depression forming hood-like structure (deep and with strongly protruding submedian carina that overhangs pedicels). Hyperoccipital carina present and sharp, not connected to occipital carina laterally; median carina between hyperoccipital carina and occipital carina absent. Gena with granulate sculpture anteroventrally and posteroventrally. Mesoscutellum with granulate sculpture. Metascutellum acuminate apically. Metasomal depression without median carina; lateral propodeal carinae strongly diverging. Hind wing Sc+R complete.
Latin noun, genitive case, referring to a kind of helmet.
The other members of the cuculli group are widespread in Asia, including China and India. Oxyscelio galeri is distinct within this group due to its acuminate metascutellum.
Female. Body length 3.35 mm (n = 1).
Radicle color: same as scape. A4: longer than broad. A5: longer than broad; as long as broad. Upper frons: not hood-like. Frontal depression sculpture: with 2–4 complete transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: absent. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: complete as a sharp carina. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: rugose; umbilicate-punctate. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: present and complete; absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate; umbilicate-punctate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate; obliquely rugose. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Major sculpture of mesoscutellum: umbilicate-foveate; obliquely rugose. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: absent. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: crossed by carinae. Lateral propodeal carinae antero-medially: strongly diverging; weakly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: absent. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching middle of T6. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: present. T1 midlobe: with 5 longitudinal carinae; with 6 or more longitudinal carinae. T1: without anterior bulge. T6: broader than long; as long as broad. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate; longitudinally striate or rugose. Microsculpture of T6: granulate.
Male. Body length 3.2 mm (n = 1). A5 tyloid: carina-like, not expanded. A11: longer than broad. T1 midlobe: with 5 longitudinal carinae. Metasomal apex: with acuminate lateral corners.
Both sexes: Hyperoccipital carina present and sharp, not connected to occipital carina laterally; median carina between hyperoccipital and occipital carinae absent. Gena with granulate sculpture posteroventrally but not anteroventrally. Mesoscutellum without granulate sculpture. Metasomal depression without median carina; lateral propodeal carinae strongly or weakly diverging. Hind wing Sc+R vein complete. Female: A4 longer than broad.
Latin noun, genitive case, meaning “circle.”
Female. Body length 2.55–2.6 mm (n = 2).
Radicle color: same as scape. A4: longer than broad; as long as broad. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 2–4 complete transverse carinae; with 1–2 broadly interrupted transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: rugose; umbilicate-punctate. Major sculpture of gena posteroventrally: umbilicate-foveate; rugose. Microsculpture of gena anteroventrally: granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: rugose; umbilicate-punctate. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: present and complete; absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate; umbilicate-punctate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent; granulate. Major sculpture of mesoscutellum: umbilicate-foveate; obliquely rugose. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: absent. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight; shallowly emarginate. Metapleuron above ventral metapleural area: crossed by carinae. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching beyond T6. Hind wing vein (Sc+R): interrupted.
Carinae between T1 midlobe and T1 lateral carina: present. T1 midlobe: with 6 or more longitudinal carinae. T1: without anterior bulge. T6: broader than long. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: absent.
Male. Body length 2.4 mm (n = 1). A5 tyloid: carina-like, not expanded. A11: longer than broad. T1 midlobe: with 4 longitudinal carinae. Metasomal apex: with acuminate lateral corners.
Both sexes: Hyperoccipital carina wrinkle-like. Gena with granulate sculpture anteroventrally and posteroventrally. Mesoscutellum without granulate sculpture. Metascutellum about as broad as long. Metasomal depression not setose; lateral propodeal carinae weakly diverging. Hind wing Sc+R interrupted. Female: T1 midlobe without anterior horn.
Latin noun, genitive case, meaning “ghost.”
Male. Body length 3.55 mm (n = 1).
Radicle color: same as scape. A5 tyloid: carina-like, not expanded. A11: longer than broad. Upper frons: not hood-like. Frontal depression sculpture: without transverse or oblique carinae below submedian carina. Median longitudinal elevation in frontal depression: present. Major sculpture of gena anteroventrally: rugose; umbilicate-punctate. Major sculpture of gena posteroventrally: rugose; umbilicate-punctate. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: absent. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; rugose. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Major sculpture of mesoscutellum: umbilicate-foveate; longitudinally rugose. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: absent. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from tiny pits. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: crossed by carinae. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: present. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 5 longitudinal carinae. Metasomal apex: with no distinct corners.
Both sexes: Hyperoccipital carina wrinkle-like, not connected to occipital carina laterally or medially. Frontal depression with median carina. Mesoscutellum without granulate sculpture. Metasomal depression setose; lateral propodeal carinae broadly separated. Hind wing Sc+R not interrupted. Male: T7 without acuminate lateral corners.
Latin noun, genitive case, meaning “an extension.”
Holotype, male: TANZANIA: Iringa Reg., Kilolo Dist., Udzungwa (Uzungwa) Mts., Luwala (Luwato) Camp area, semi-evergreen montane tropical virgin forest edge, Ndundulu Forest, 1880m, 18.I–25.I.2007, malaise trap, L. A. Hansen & A. Hedayat,
Oxyscelio intensionis bears some resemblance to several Australian species of the aciculae group, especially to Oxyscelio divisionis Burks. None of the species within that group has a setose metasomal depression.
Female. Body length 4.6–5.25 mm (n = 9).
Radicle color: same as scape. A4: broader than long; as long as broad. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 2–4 complete transverse carinae. Median longitudinal elevation in frontal depression: present. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: umbilicate-foveate. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: absent; present, anteriorly incomplete. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; umbilicate-punctate. Occipital carina medially: with nearly flat angular median portion. Lateral corners of occipital carina: sharp and protruding corners present.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: granulate. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: granulate. Microsculpture of mesoscutellum laterally: granulate. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: 3–5; more than 5. Setae along anterior limit of femoral depression: arising from tiny pits. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: crossed by carinae. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: absent. Fore wing apex: reaching apex of T5; reaching middle of T6. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: present. T1 midlobe: with 4 longitudinal carinae. T1: without anterior bulge. T6: broader than long; as long as broad. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate; longitudinally striate or rugose. Microsculpture of T6: granulate.
Male. Body length 4.8 mm (n = 2). A5 tyloid: expanded, teardrop-shaped or sinuate. A11: longer than road. T1 midlobe: with 4 longitudinal carinae. Metasomal apex: with acuminate lateral corners.
Both sexes: Hyperoccipital carina wrinkle-like, connected to occipital carina by lateral elevation; median carina between hyperoccipital and occipital carinae present but sometimes indicated only posteriorly; occipital carina nearly flat medially. Mesoscutellum with granulate sculpture. Metasomal depression not setose, without median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R vein complete. Female: T6 rounded apically.
Noun, referring to a moon of Jupiter.
Holotype, female: GUINEA: Lola Pref., rainforest, Mount Nimba, 07°41–42'N 08°23'W, 514–740m, XII–1990 – III–1991, flight intercept trap, L. Leblanc,
Female. Body length 3.3–3.85 mm (n = 13).
Radicle color: same as scape. A4: longer than broad. A5: longer than broad; as long as broad. Upper frons: not hood-like. Frontal depression sculpture: with 1–2 broadly interrupted transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: rugose; umbilicate-punctate. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: complete as a sharp carina. Median carina extending posteriorly from hyperoccipital carina: present, complete; present, anteriorly incomplete. Lateral connection between hyperoccipital and occipital carinae: present as a distinct carina. Area between vertex and occipital carina: rugose; umbilicate-punctate. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: sharp and protruding corners present.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: present and complete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent; granulate. Major sculpture of mesoscutellum: umbilicate-foveate; obliquely rugose. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: absent. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight; shallowly emarginate. Metapleuron above ventral metapleural area: crossed by carinae. Lateral propodeal carinae antero-medially: strongly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: absent. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching middle of T5. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: present. T1 midlobe: obscured by other raised sculpture. T1: with weak anterior bulge that does not closely approach metascutellum. T6: longer than broad. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate; longitudinally striate or rugose. Microsculpture of T6: granulate.
Male. Body length 3.25–3.65 mm (n = 3). A5 tyloid: carina-like, not expanded. A11: longer than broad. T1 midlobe: with 4 longitudinal carinae. Metasomal apex: with acuminate lateral corners.
Both sexes: Hyperoccipital carina present and sharp, connected to occipital carina by lateral carina; median carina between hyperoccipital and occipital carinae present but sometimes indicated only posteriorly. Gena with granulate sculpture posteroventrally but not anteroventrally. Mesoscutellum without granulate sculpture. Metasomal depression without setae, without median carina; lateral propodeal carinae strongly diverging. Hind wing Sc+R vein complete. Female: A4 longer than broad.
Greek noun, meaning “cup.”
Holotype, female: GUINEA: Lola Pref., Gouan River, rainforest, Mount Nimba, 07°42'N 08°23'W, 514m, 7.I–15.I.1991, flight intercept trap, L. Leblanc,
Female. Body length 3.5–3.7 mm (n = 8).
Radicle color: same as scape. A4: longer than broad. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 3 or more broadly interrupted transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: rugose; umbilicate-punctate. Microsculpture of gena anteroventrally: absent; granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: complete as a sharp carina. Median carina extending posteriorly from hyperoccipital carina: present, complete. Lateral connection between hyperoccipital and occipital carinae: present as a distinct carina. Area between vertex and occipital carina: umbilicate-foveate; rugose; umbilicate-punctate. Occipital carina medially: sinuate with a more strongly arched median portion. Lateral corners of occipital carina: sharp and protruding corners present.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: present and complete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent; granulate. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: granulate. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: crossed by carinae. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching middle of T6. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 6 or more longitudinal carinae. T1: without anterior bulge. T6: broader than long; as long as broad. Metasomal apex: rounded; tapering to a sharp point. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: absent.
Male. Body length 3.4–3.65 mm (n = 20). A5 tyloid: carina-like, not expanded. A11: longer than broad. T1 midlobe: with 4 longitudinal carinae. Metasomal apex: with acuminate lateral corners.
Both sexes: Hyperoccipital carina present and sharp, connected to occipital carina by lateral carina; median carina present between hyperoccipital and occipital carinae. Gena with granulate sculpture posteroventrally but not anteroventrally. Mesoscutellum with granulate sculpture laterally. Metasomal depression not setose, without median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R vein complete. Female: A4 longer than broad.
Latin noun, genitive case, meaning “moon.”
Holotype, female: CAMEROON: Nkoemvom, VIII–1980, malaise trap, D. Jackson,
Oxyscelio lunae is by far the most commonly collected species of its genus from Africa, although nearly all known specimens are male. It is very similar to O. pulveris, but after extensive comparison of the two series we concluded that they are different species. The chief difference is the considerably more granulate sculpture of O. pulveris, which occurs in conjunction with lower and more rounded (therefore, less sharp and less distinctive) carinae, especially the hyperoccipital and mesoscutellar disc carinae. These features are accompanied by some more vague and less easily described differences in eye shape, mesosomal and metasomal sclerite shape, and metasomal sculpture.
Female. Body length 4.8 mm (n = 1).
Radicle color: darker than scape. A4: broader than long. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: without transverse or oblique carinae below submedian carina. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: rugose; umbilicate-punctate. Microsculpture of gena anteroventrally: absent. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; umbilicate-punctate. Occipital carina medially: with nearly flat angular median portion. Lateral corners of occipital carina: sharp and protruding corners present.
Mesoscutum anteriorly: steep. Mesoscutal median carina: absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: granulate. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: granulate. Microsculpture of mesoscutellum laterally: granulate. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: flat or convex. Metascutellar sculpture centrally: rugose. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: crossed by carinae; foveate or rugose. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: present. Anterior areoles of metasomal depression: absent. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: absent. Fore wing apex: reaching apex of T5. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 4 longitudinal carinae. T1: without anterior bulge. T6: longer than broad. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: granulate.
Both sexes: Hyperoccipital carina wrinkle-like, not connected to occipital carina laterally; median carina between hyperoccipital and occipital carinae absent; occipital carina nearly flat medially. Mesoscutellum with granulate sculpture. Metasomal depression setose, without median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R vein complete. Female: T6 rounded apically.
Latin noun, genitive case.
Holotype, female: NIGERIA: Oyo St., International Institute of Tropical Agriculture (
Oxyscelio nemesis strongly resembles Oxyscelio io, and they both vaguely resemble Oxyscelio teli. These three species together may form a monophyletic species complex, but such a grouping would currently be difficult to fully distinguish from similar African species. It can be roughly defined by the medially more or less flat occipital carina, but this feature in O. io is variable and sometimes not greatly different from that of some excluded African species.
The shape of the head of this species and the carinate margin of the antennal scribe make it superficially similar to the genus Baryconus Förster. The fore wing venation, however, makes it clear that this is an Oxyscelio: it lacks elongate marginal and postmarginal veins, and the stigma vein arises from the upturned apical portion of the submarginal vein.
Female. Body length 3.5 mm (n = 1).
Radicle color: same as scape. A4: longer than broad. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 3 or more broadly interrupted transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: umbilicate-punctate. Microsculpture of gena anteroventrally: granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: complete as a sharp carina. Median carina extending posteriorly from hyperoccipital carina: present, complete. Lateral connection between hyperoccipital and occipital carinae: present as a distinct carina. Area between vertex and occipital carina: rugose; umbilicate-punctate. Occipital carina medially: sinuate with a more strongly arched median portion. Lateral corners of occipital carina: sharp and protruding corners present.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: present and complete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent; granulate. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: granulate. Microsculpture of mesoscutellum laterally: granulate. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: crossed by carinae. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: median carina present. Postmarginal vein: present. Fore wing apex: reaching beyond T6. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 5 longitudinal carinae. T1: without anterior bulge. T6: longer than broad. Metasomal apex: tapering to a sharp point. Major sculpture of T6: longitudinally striate or rugose. Microsculpture of T6: granulate.
Both sexes: Hyperoccipital carina present and sharp, connected to occipital carina by lateral carina; median carina present between hyperoccipital and occipital carinae. Gena with granulate sculpture posteroventrally but not anteroventrally. Mesoscutellum with granulate sculpture throughout. Metasomal depression without setae, with median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R vein complete. Female: A4 longer than broad.
Latin noun, genitive case, meaning “dust.”
Holotype, female: RWANDA: primary rainforest, Nyungwe Forest, 02°46’10”S 29°21’09”E, 24.VIII–26.VIII.1993, pan trap/flight intercept trap/malaise trap, L. Leblanc,
See the discussion under O. lunae for comparison of these two very similar species.
Female. Body length 2.95–3.55 mm (n = 4).
Radicle color: same as scape. A4: longer than broad. A5: longer than broad. Upper frons: not hood-like. Frontal depression sculpture: with 1–2 broadly interrupted transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate. Major sculpture of gena posteroventrally: absent; umbilicate-punctate. Microsculpture of gena anteroventrally: granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; rugose. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: granulate. Major sculpture of mesoscutellum: umbilicate-foveate; longitudinally rugose. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: absent. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: shallowly emarginate. Metapleuron above ventral metapleural area: foveate or rugose. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: present. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching middle of T6; reaching apex of T6. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 5 longitudinal carinae. T1: without anterior bulge. T6: broader than long. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: granulate.
Male. Body length 2.7–3.15 mm (n = 5). A5 tyloid: carina-like, not expanded. A11: longer than broad. T1 midlobe: with 4 longitudinal carinae. Metasomal apex: with acuminate lateral corners.
Both sexes: Hyperoccipital carina wrinkle-like, not connected to occipital carina laterally; median carina between hyperoccipital and occipital carinae absent. Gena with granulate sculpture anteroventrally and posteroventrally. Mesoscutellum without granulate sculpture. Metasomal depression setose, without median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R vein complete. Female: A4 longer than broad.
Latin noun (4th declension), genitive case, meaning “the act of shaking.”
Holotype, female: GUINEA: Lola Pref., Gouan River, rainforest, Mount Nimba, 07°42'N 08°23'W, 514m, 7.I–15.I.1991, flight intercept trap, L. Leblanc,
Female. Body length 3.2–3.35 mm (n = 4).
Radicle color: same as scape; darker than scape. A4: broader than long; as long as broad. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 2–4 complete transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate; rugose. Major sculpture of gena posteroventrally: umbilicate-foveate; rugose. Microsculpture of gena anteroventrally: absent; granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: present, complete. Lateral connection between hyperoccipital and occipital carinae: present as a rounded elevation. Area between vertex and occipital carina: rugose; umbilicate-punctate. Occipital carina medially: with nearly flat angular median portion. Lateral corners of occipital carina: sharp and protruding corners present.
Mesoscutum anteriorly: steep. Mesoscutal median carina: present and complete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: absent. Microsculpture of mesoscutellum laterally: absent. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: shallowly emarginate. Metapleuron above ventral metapleural area: foveate or rugose. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: absent. Anterior areoles of metasomal depression: absent. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching middle of T5; reaching apex of T5. Hind wing vein (Sc+R): not interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 5 longitudinal carinae. T1: without anterior bulge. T6: broader than long. Metasomal apex: tapering to a sharp point. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: absent; granulate.
Both sexes: Hyperoccipital carina wrinkle-like, connected to occipital carina by lateral elevation; median carina between hyperoccipital and occipital carinae present. Mesoscutellum without granulate sculpture. Metasomal depression without setae, without median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R vein complete. Female: A4 broader than long; T6 sharply acuminate apically.
Latin noun, genitive case, meaning “dart.”
Holotype, female: KENYA: Eastern Prov., nr. Ewaso Ngiro River, next to headquarters, riverine forest, Samburu National Reserve, 00.56797°N 37.53563°E, 874m, 18.IX–2.X.2007, malaise trap, R. Copeland,
Female. Body length 3.15–3.35 mm (n = 2).
Radicle color: darker than scape. A4: longer than broad. A5: broader than long. Upper frons: not hood-like. Frontal depression sculpture: with 2–4 complete transverse carinae. Median longitudinal elevation in frontal depression: absent. Major sculpture of gena anteroventrally: umbilicate-foveate; rugose. Major sculpture of gena posteroventrally: absent; rugose. Microsculpture of gena anteroventrally: granulate. Microsculpture of gena posteroventrally: granulate. Hyperoccipital carina: wrinkle-like. Median carina extending posteriorly from hyperoccipital carina: absent. Lateral connection between hyperoccipital and occipital carinae: absent. Area between vertex and occipital carina: umbilicate-foveate; rugose. Occipital carina medially: uniformly rounded. Lateral corners of occipital carina: absent.
Mesoscutum anteriorly: not steep. Mesoscutal median carina: absent or incomplete. Major sculpture of mesoscutal midlobe anteriorly: umbilicate-foveate. Major sculpture of mesoscutal midlobe posteriorly: umbilicate-foveate. Microsculpture of mesoscutal midlobe anteriorly: granulate. Microsculpture of mesoscutal midlobe posteriorly: absent; granulate. Major sculpture of mesoscutellum: umbilicate-foveate. Microsculpture of mesoscutellum medially: punctate. Microsculpture of mesoscutellum laterally: punctate. Number of carinae crossing femoral depression: 4 or more. Mesepimeral sulcus pits: more than 5. Setae along anterior limit of femoral depression: arising from rows of foveae. Metascutellum dorsally: concave. Metascutellar sculpture centrally: smooth. Metascutellar apex: convex or straight. Metapleuron above ventral metapleural area: foveate or rugose. Lateral propodeal carinae antero-medially: weakly diverging. Metasomal depression setae: present. Anterior areoles of metasomal depression: one or more areoles present. Anterior longitudinal carinae in metasomal depression: absent. Postmarginal vein: present. Fore wing apex: reaching middle of T6; reaching apex of T6. Hind wing vein (Sc+R): interrupted.
Carinae between T1 midlobe and T1 lateral carina: absent. T1 midlobe: with 6 or more longitudinal carinae. T1: without anterior bulge. T6: broader than long. Metasomal apex: rounded. Major sculpture of T6: umbilicate-punctate. Microsculpture of T6: granulate.
Both sexes: Hyperoccipital carina wrinkle-like, not connected to occipital carina laterally or medially. Gena with granulate sculpture anteroventrally and posteroventrally. Mesoscutellum without granulate sculpture, with some punctate sculpture between foveae. Metasomal depression setose, without median carina; lateral propodeal carinae weakly diverging. Hind wing Sc+R interrupted. T1 without carinae between midlobe and lateral carina. Female: A4 longer than broad.
Latin noun, genitive case, meaning “a present intended for a guest.”
We thank L. Musetti, J. Jennings, J. Cora, A. Valerio, S. Hemly, E. Alvarez, D. Stringer, S. Mantel, and other members of the PBI team, for assistance with specimens, photographs, and databasing. This work was funded by the National Science Foundation under grant No. DEB–0614764 to N.F. Johnson and A.D. Austin, and by the Australian Biological Resources Study grant 208-058 to A.D. Austin.
Taxonomic (doi: #.#/zookeys.#.#.app.1a) and locality records (doi: #.#/zookeys.#.#.app.1b) for all records used in the present paper. File format: DarwinCore Archive.
Characters. * = used in phylogenetic analysis.
1. Radicle color
1. same as scape
2. darker than scape
2. A4 (female)
1. broader than long
2. longer than broad
3. as long as broad
3. A5 (female)
1. broader than long
2. longer than broad
3. as long as broad
4. Upper frons
1. not hood-like
2. hood-like, protruding over pedicel when antenna at rest
5. Frontal depression sculpture
1. without transverse or oblique carinae below submedian carina
2. with 3 or more broadly interrupted transverse carinae
3. with 2–4 complete transverse carinae
4. with 1–2 broadly interrupted transverse carinae
6. Median longitudinal elevation in frontal depression
1. absent
2. present
7. Major sculpture of gena anteroventrally
1. umbilicate-foveate
2. rugose
3. umbilicate-punctate
8. Major sculpture of gena posteroventrally
1. absent
2. umbilicate-foveate
3. rugose
4. umbilicate-punctate
9. Microsculpture of gena anteroventrally
1. absent
2. granulate
10. Microsculpture of gena posteroventrally
1. absent
2. granulate
11. Hyperoccipital carina*
1. complete as a sharp carina
2. not indicated medially
3. wrinkle-like
12. Median carina extending posteriorly from hyperoccipital carina*
1. absent
2. present, complete
3. present, anteriorly incomplete
13. Lateral connection between hyperoccipital and occipital carinae*
1. absent
2. present as a distinct carina
3. present as a rounded elevation
14. Area between vertex and occipital carina
1. umbilicate-foveate
2. rugose
3. umbilicate-punctate
15. Occipital carina medially*
1. uniformly rounded
2. sinuate with a more strongly arched median portion
3. with nearly flat angular median portion
16. Lateral corners of occipital carina*
1. absent
2. sharp and protruding corners present
17. Mesoscutum anteriorly
1. steep
2. not steep
18. Mesoscutal median carina
1. present and complete
2. absent or incomplete
19. Major sculpture of mesoscutal midlobe anteriorly
1. umbilicate-foveate
2. umbilicate-punctate
20. Major sculpture of mesoscutal midlobe posteriorly
1. umbilicate-foveate
2. transversely rugose
3. obliquely rugose
4. longitudinally rugose
21. Microsculpture of mesoscutal midlobe anteriorly
1. granulate
22. Microsculpture of mesoscutal midlobe posteriorly
1. absent
2. granulate
23. Major sculpture of mesoscutellum
1. umbilicate-foveate
2. longitudinally rugose
3. obliquely rugose
24. Microsculpture of mesoscutellum medially
1. absent
2. granulate
3. punctate
25. Microsculpture of mesoscutellum laterally
1. absent
2. granulate
3. punctate
26. Number of carinae crossing femoral depression
1. more than 5
27. Mesepimeral sulcus pits
1. 3–5
2. more than 5
28. Setae along anterior limit of femoral depression
1. arising from rows of foveae
2. arising from tiny pits
29. Metascutellum dorsally
1. concave
2. flat or convex
30. Metascutellar sculpture centrally
1. smooth
2. rugose
3. with longitudinal carinae
4. foveate
31. Metascutellar apex
1. convex or straight
2. deeply emarginate
3. sharply acuminate
4. shallowly emarginate
32. Metapleuron above ventral metapleural area
1. crossed by carinae
2. foveate or rugose
33. Lateral propodeal carinae antero-medially (female)
1. strongly diverging
2. weakly diverging
34. Metasomal depression setae*
1. absent
2. present
35. Anterior areoles of metasomal depression
1. absent
2. one or more areoles present
36. Anterior longitudinal carinae in metasomal depression
1. absent
2. median carina present
37. Postmarginal vein*
1. present
2. absent
38. Fore wing apex (female)
1. reaching middle of T5
2. reaching apex of T5
3. reaching middle of T6
4. reaching apex of T6
5. reaching beyond T6
39. Hind wing vein (Sc+R)*
1. not interrupted
2. interrupted
40. Carinae between T1 midlobe and T1 lateral carina*
1. present
2. absent
41. T1 midlobe (female)*
1. with 4 longitudinal carinae
2. with 5 longitudinal carinae
3. with 6 or more longitudinal carinae
4. obscured by other raised sculpture
42. T1 (female)*
1. without anterior bulge
2. with long anterior bulge that reaches metascutellum
3. with weak anterior bulge that does not closely approach metascutellum
43. T6
1. broader than long
2. longer than broad
3. as long as broad
44. Metasomal apex (female)*
1. rounded
2. tapering to a sharp point
45. Major sculpture of T6
1. umbilicate-punctate
2. longitudinally striate or rugose
46. Microsculpture of T6
1. absent
2. granulate
47. A5 tyloid
1. carina-like, not expanded
2. expanded, teardrop-shaped or sinuate
48. A11 (male)*
1. longer than broad
49. T1 midlobe (male)
1. with 4 longitudinal carinae
2. with 5 longitudinal carinae
3. with 6 or more longitudinal carinae
50. Metasomal apex (male)*
1. with acuminate lateral corners
2. with no distinct corners
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Bracalba cuneata | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1 |
Oxyscelio absentiae | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 1 | 0 | ? | ? |
Oxyscelio bicolor | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
Oxyscelio galeri | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 1 | ? | ? | ? | 0 | 1 |
Oxyscelio gyri | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | [12] | 0 | 0 | 0 | 0 |
Oxyscelio idoli | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 0 |
Oxyscelio intensionis | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | ? | ? | ? | 0 | 1 |
Oxyscelio io | 2 | [02] | 0 | 2 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Oxyscelio kylix | 0 | [12] | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 3 | 2 | 0 | 0 | 0 |
Oxyscelio lunae | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 2 | 0 | [01] | 0 | 0 |
Oxyscelio nemesis | 2 | 0 | 0 | 2 | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | ? | ? |
Oxyscelio pulveris | 0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | ? | ? |
Oxyscelio quassus | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 |
Oxyscelio teli | 2 | 1 | 2 | 2 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | 1 | ? | ? |
Oxyscelio xenii | 2 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 2 | 0 | 0 | ? | ? |
Taxonomic records used in the present paper.
Data type: specimen data
Explanation note: File format: DarwinCore Archive.
Locality records used in the present paper.
Data type: specimen data
Explanation note: File format: DarwinCore Archive.