Research Article |
Corresponding author: Cornelis van Achterberg ( kees@vanachterberg.org ) Academic editor: Jose Fernandez-Triana
© 2017 Cornelis van Achterberg, Donald L.J. Quicke, C. Andrew Boring.
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:
van Achterberg C, Quicke DLJ, Boring CA (2017) A revision of the tribe Planitorini van Achterberg (Hymenoptera, Braconidae, Euphorinae), with description of a new genus from Australia. ZooKeys 718: 35-64. https://doi.org/10.3897/zookeys.718.21151
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The tribe Planitorini van Achterberg (Hymenoptera: Braconidae: Euphorinae) is revised. One new genus Paramannokeraia gen. n. (type species: P. gibsoni sp. n.) and five new species from Australia are described and illustrated: Mannokeraia albipalpis van Achterberg, sp. n., M. nigrita van Achterberg, sp. n., M. punctata van Achterberg, sp. n., Paramannokeraia gibsoni van Achterberg & Quicke, sp. n. and P. juliae van Achterberg, sp. n. The tribe Mannokeraiini van Achterberg, 1995, is synonymized with the tribe Planitorini (syn. n.).
Braconidae , Euphorinae , Planitorini , Mannokeraiini , Paramannokeraia , Mannokeraia , Planitorus , key, new genus, new species, distribution, Australia
The subfamily Euphorinae Foerster, 1863 (Hymenoptera, Braconidae) is morphologically a very diverse group (
For the identification of the subfamily Euphorinae, see
The studied material concerns all the Planitorini and Mannokeraiini specimens used for DNA analysis and some additional specimens collected by Dr L. Masner (Ottawa). So far, the specimens have been provisionally identified up to genus level (
Measurements are performed as indicated in
Planitorini van Achterberg, 1995: 46.
Mannokeraiini van Achterberg, 1995: 95. Syn. n.
Antenna of ♀ with 16–20 segments, and segments of apical half moniliform (Figs
The DNA analysis by
1 | Antennal sockets touching each other (Fig. |
Planitorus van Achterberg, 1995 |
– | Antennal sockets remaining separate from each other (Figs |
2 |
2 | Dorsope of first tergite large and deep and tergite about 1.5 times longer than its apical width (Figs |
Paramannokeraia van Achterberg & Quicke, gen. n. |
– | Dorsope of first tergite absent or (rarely) shallowly impressed and tergite 2.2–2.9 times longer than its apical width (Figs |
Mannokeraia van Achterberg, 1995 |
Mannokeraia van Achterberg, 1995: 96–97.
Mannokeraia aptera van Achterberg, 1995 (examined).
Antenna of ♀ with 16–20 segments, and segments of apical half moniliform (Figs
Australia: four species.
Unknown.
1 | Setose part of ovipositor sheath about 0.2 times as long as hind tibia (Fig. |
M. aptera van Achterberg, 1995 |
– | Setose part of ovipositor sheath 0.5–0.6 times as long as hind tibia (Figs |
2 |
2 | Propodeum densely and coarsely punctate (Figs |
M. punctata sp. n. |
– | Propodeum only densely rugose (Figs |
3 |
3 | Basal 7 antennal segments of both sexes dark brown or blackish (Fig. |
M. nigrita sp. n. |
– | Basal 7 antennal segments of ♀ brownish yellow (Fig. |
M. albipalpis sp. n. |
Mannokeraia sp. 4 Stigenberg et al., 2015: 575.
Holotype, ♀ (
Antenna of ♀ with 20 segments and medially slightly widened (Fig.
Mannokeraia albipalpis sp. n., ♀, holotype. 2 wings 3 mesosoma, lateral aspect 4 mesosoma, dorsal aspect 5 propodeum, first–third metasomal tergites, dorsal aspect 6 hind leg, lateral aspect 7 fore legs, inner aspect 8 head, anterior aspect 9 head, dorsal aspect 10 head, lateral aspect 11 antennae, ventral aspect.
Holotype, ♀, length of fore wing 2.9 mm, and of body 3.7 mm.
Head. Antenna with 16+ segments (apical segments missing, ♀ paratype has 20 antennal segments), length of third segment 1.1 times fourth segment, third and fourth segments 1.1 and 1.0 times as long as wide, respectively (Fig.
Mesosoma. Length of mesosoma 1.9 times its height; dorsal pronope and antescutal depression absent; side of pronotum narrowly crenulate antero-medially, widely crenulate postero-ventrally and remainder largely smooth; mesopleuron coarsely punctate dorsally; precoxal sulcus complete, rather widely crenulate-punctate (Fig.
Wings. Fore wing: 1-M weakly curved; 1-SR short (Fig.
Legs. Hind coxa densely rugose-punctate, its outer side mainly punctate (Fig.
Metasoma. First tergite 2.5 times longer than its apical width, petiolate basally and gradually widened apically (Fig.
Colour. Black; palpi and basal half metasoma ventrally white; tegulae pale yellowish; seven basal segments of antenna, fore and middle legs brownish yellow; hind leg (except dark brown coxa) yellowish brown, but tibia and tarsus slightly darkened; face, clypeus, remainder of antenna and of metasoma (except black first tergite), pterostigma and most veins of fore wing dark brown; wing membrane weakly infuscate.
Male. Similar to female paratype except for the shape of the antennal segments (22+, apical segments missing; Fig.
Female paratype is very similar to holotype. Length of fore wing 2.9 mm, of body 3.0 mm; antenna with 20 segments, its penultimate segment as long as wide (without pedunculus 0.8 times); both teeth of mandible large; first metasomal tergite 2.3 times longer than its apical width and with slightly indicated dorsope; setose part of ovipositor sheath 0.18 times as long as fore wing and 0.54 times hind tibia.
Named after its white palpi (“albus” is white in Latin).
Australia (Queensland). Collected in December and February.
Mannokeraia apterus van Achterberg, 1995: 96-97, 153 (examined).
Antenna of ♀ with 16 segments and medially widened (Fig.
Mannokeraia aptera van Achterberg, ♀, holotype. 17 head, dorsal aspect 18 mesosoma, dorsal aspect 19 habitus, lateral aspect 20 ovipositor, ventral aspect 21, fore tarsus, lateral aspect 22 first-third metasomal tergites, dorsal aspect 23 head, anterior aspect 24 apex of antenna, lateral aspect 25 middle tarsus, lateral aspect 26 outer hind claw, lateral aspect 27 hind leg, lateral aspect. 17, 18, 22, 23: 2.2× scale-line; 19, 20, 27: 1.0×; 21, 24, 25: 3.3×; 26: 2.5×. From:
Australia (New South Wales, A.C.T.).
Mannokeraia sp. 1–3 Saranowski et al., 2011: 555, 559.
Holotype, ♀ (
Antenna of ♀ with 19+ segments and medially rather widened (Fig.
Mannokeraia nigrita sp. n., ♀, holotype. 29 wings 30 mesosoma, lateral aspect 31 mesosoma, dorsal aspect 32 propodeum, first–third metasomal tergites, dorsal aspect 33 hind leg, lateral aspect 34 head, anterior aspect 35 head, dorsal aspect 36 head, lateral aspect 37 fore legs, inner aspect 38 antenna, lateral aspect.
Holotype, ♀, length of fore wing 3.6 mm, and of body 5.1 mm.
Head. Antenna with 19+ segments (apical segment(s) missing), pedicellus short (Figs
Mesosoma. Length of mesosoma 1.9 times its height; dorsal pronope and antescutal depression absent; side of pronotum rugose, but medially and dorsally largely smooth; mesopleuron coarsely punctate dorsally; precoxal sulcus complete, rather narrow crenulate-punctate (Fig.
Wings. Fore wing: pterostigma wide (Fig.
Legs. Hind coxa largely rugose, dorso-basally transversely rugose; tarsal claws with wide truncate lamelliform lobe (Fig.
Metasoma. First tergite 2.2 times longer than its apical width, petiolate basally and gradually widened apically (Fig.
Colour. Black; antenna and legs blackish or dark brown; palpi pale brown; tegulae, pterostigma (but apex pale), most veins of fore wing and metasoma (except black first tergite) dark brown; wing membrane weakly infuscate.
Male. Rather different (Fig.
Named after its blackish antenna (“niger” is black in Latin).
Australia (Victoria). Collected in January–February.
Antenna of ♀ unknown, of ♂ with 30 segments, cylindrical and slender, dark brown but scapus and pedicellus brownish yellow ventrally; palpi pale yellowish; with transverse space between clypeus and closed mandibles (Fig.
Mannokeraia punctata sp. n., ♂, holotype. 46 wings 47 mesosoma, lateral aspect 48 mesosoma, dorsal aspect 49 propodeum, first–third metasomal tergites, dorsal aspect 50 hind leg, lateral aspect 51 antenna, lateral aspect 52 head, anterior aspect 53 head, dorsal aspect 54 head, lateral aspect 55 fore legs, inner aspect.
Holotype, ♂, length of fore wing 2.8 mm, and of body 3.5 mm.
Head. Antenna with 30 segments, pedicellus short (Figs
Mesosoma. Length of mesosoma 1.7 times its height; dorsal pronope and antescutal depression absent; side of pronotum antero-medially and posteriorly coarsely crenulate, rugose, antero-ventrally rugose and remainder largely smooth; mesopleuron coarsely punctate dorsally; precoxal sulcus complete, wide medially and coarsely punctate (Fig.
Wings. Fore wing: pterostigma wide (Fig.
Legs. Hind coxa largely transversely striate but basally punctate (Figs
Metasoma. First tergite 2.8 times longer than its apical width, petiolate basally and gradually widened apically (Fig.
Colour. Black; scapus and pedicellus ventrally, clypeus, mandible, fore and middle legs (but tibiae and tarsi darkened) brownish yellow; palpi and tegulae pale yellow; face, pronotum, mesoscutum, mesosternum and mesopleuron antero-dorsally and ventrally yellowish brown; remainder of antenna and of mesosoma, first metasomal tergite, hind leg, pterostigma (but apex pale), most veins of fore wing dark brown; remainder of metasoma brown, but ventrally membranes whitish; wing membrane subhyaline.
Named after its punctate propodeum (“punctus” is puncture in Latin).
Australia (Queensland). Collected in February.
Paramannokeraia gibsoni van Achterberg & Quicke, sp. n. Gender: feminine.
From “para” (= Greek for “near”) and the generic name Mannokeraia van Achterberg, 1995, because the new genus is related to it.
Antenna of ♀ with 19 segments, pedicellus much narrower than scapus and most segments moniliform (Fig.
Paramannokeraia gibsoni gen. n. & sp. n., ♀, holotype. 56 wings 57 head, anterior aspect 58 habitus, lateral aspect 59 first metasomal tergite, dorsal aspect 60 outer hind claw, lateral aspect 61 head, dorsal aspect 62 mesosoma, dorsal aspect 63 fore femur and tibia, lateral aspect 64 fore tarsus, dorsal aspect 65 hind leg, lateral aspect. 56, 58, 65: scale-line (= 1×); 57, 59, 61, 62, 64: 2.0×; 63: 2.2×; 60: 3.2×.
Australia (two species).
Because of its venation, shape of the telotarsi, submedial position of the spiracle of the first tergite and shape of the first tergite, the genus belongs to the subfamily Euphorinae within which it belongs to the tribe Planitorini. It resembles Mannokeraia, because of the small pedicellus (much narrower than the scapus; Fig.
1 | Face rugose dorsally and densely punctate ventrally (Fig. |
P. gibsoni sp. n. |
– | Face mainly sparsely punctate (Fig. |
P. juliae sp. n. |
Mannokeraia
gibsoni
;
Holotype, ♀ (
Antenna of ♀ with 15+ robust segments, apical segments pedunculate (Fig.
Holotype, ♀, length of fore wing 2.1 mm, and of body 2.2 mm.
Head. Antenna with 15+ segments, length of third segment 1.1 times fourth segment, third and fourth segments 1.7 and 1.6 times as long as wide, respectively (Fig.
Mesosoma. Length of mesosoma 1.8 times its height; dorsal pronope small, round (Fig.
Wings. Fore wing: 1-M distinctly curved; 1-SR very short (Fig.
Legs. Hind coxa basally finely rugose and remainder largely smooth (Fig.
Metasoma. First tergite 1.5 times longer than its apical width, distinctly petiolate (Fig.
Colour. Black; basal half of antenna, pronotum narrowly antero-ventrally and legs rather dark yellowish brown; tegulae and palpi pale yellowish; metasoma (except black first tergite), pterostigma (but narrowly paler basally) and apical half of antenna dark brown; veins brown; wing membrane weakly infuscate.
Named after Dr Gary A.P. Gibson (Ottawa), for his extensive contribution to our knowledge of Chalcidoidea (especially of the families Eupelmidae and Pteromalidae), and of Mymarommatidae.
Australia (New South Wales). Collected in April.
Mannokeraia
sp.;
Holotype, ♀ (
Antenna of ♀ with 19 robust segments, apical segments pedunculate (Fig.
Holotype, ♀, length of fore wing 2.5 mm, and of body 2.7 mm.
Head. Antenna with 19 segments, length of third segment 1.1 times fourth segment, third, fourth and penultimate segments 1.6, 1.4 and 0.9 (without pedunculus 0.8) times as long as wide, respectively (Fig.
Paramannokeraia juliae gen. n. & sp. n., ♀, holotype. 67 wings 68 mesosoma, lateral aspect 69 mesosoma, dorsal aspect 70 propodeum, first–third metasomal tergites, dorsal aspect 71 hind leg, lateral aspect 72 antenna 73 head, anterior aspect 74 head, dorsal aspect 75 head, lateral aspect 76 fore legs, inner aspect.
Mesosoma. Length of mesosoma 1.9 times its height; dorsal pronope and antescutal depression absent; side of pronotum largely punctate-rugose ventrally, largely smooth medially, with narrow crenulate groove antero-dorsally and punctate-costate posteriorly; epicnemial area punctate dorsally; precoxal sulcus complete, narrowly crenulate-punctate (Fig.
Wings. Fore wing: 1-M weakly curved; 1-SR short (Fig.
Legs. Hind coxa basally smooth; tarsal claws with wide truncate lamelliform lobe (Fig.
Metasoma. First tergite 1.5 times longer than its apical width, distinctly petiolate (Fig.
Colour. Black; antenna, metasoma except black first tergite and legs dark brown, but hind trochanter and tibial spurs brown; tegulae and palpi pale yellowish; pterostigma and veins brown; wing membrane weakly infuscate.
Male. Similar to female holotype except for the shape of the antennal segments, slender fore and middle tarsi (Figs
Named after Dr Julia Stigenberg (Stockholm), who generously made the holotype available for this study.
Australia (Tasmania). Collected in January–March.
Planitorus van Achterberg, 1995: 46–47.
Planitorus breviflagellaris van Achterberg, 1995 (examined).
Antenna of ♀ with 17 segments, and segments of apical half moniliform (Figs
Planitorus breviflagellaris van Achterberg, ♀, holotype. 84 wings 85 head, dorsal aspect 86 head, frontal aspect 87 habitus, lateral aspect 88 ovipositor, ventral aspect 89 fore femur, lateral aspect 90 mesosoma, dorsal aspect 91 apex of antenna 92 outer hind claw, lateral aspect 93 first metasomal tergite, dorsal aspect 94 fore tibia and tarsus, mainly lateral aspect 95 base of antenna, lateral aspect 96 hind leg, lateral aspect. 84, 87–90, 93, 95: 1.0× scale-line; 85, 86: 1.6×; 91, 92, 94, 96: 2.5×. From:
Australia: one species.
Unknown.
Planitorus breviflagellaris van Achterberg, 1995: 47-48, 192.
See generic diagnosis.
Australia (Queensland, A.C.T.). Collected in December–March.
A headless and also otherwise severely damaged male from near Mount Barker (
We are grateful to Julia Stigenberg and Hege Vårdal (