Pictorial key for females of Decevania Huben (Hymenoptera, Evaniidae) and description of a new species

Abstract Decevania Huben currently comprises 13 species, the females of which are known for only four. Herein an additional Neotropical Decevania is newly described: Decevania feitosai Kawada, sp. n. from Colombia. The description and identification key were made using the DELTA program. A pictorial key to females of Decevania is provided. Anatomical terminology follows the Hymenoptera Anatomy Ontology project with an atlas for terminologies used for recognition of Decevania species. The distribution maps can be accessed in Google Maps or through of Dryad (repository of data).

Distribution map. Google maps 9 provides a powerful tool for fast, collaborative research, with some advantages listed below: (1) steady inclusion of data even after publication; (2) use of the same map in other publications, enabling a comparison with previous work; (3) fast inclusion of data through a network of collaboration; (4) accuracy and standardization of data among researchers; (5) the use of the same map, resulting from a publication, elsewhere in the network (blog's, discussion list, meetings). The locality data reported for all analyzed specimens are a literal transcription of the label. Details on the data associated with these specimens may be accessed at the following link, using Google url shortener 10 : Decevania Distribution 11 in © 2011 Google -Map data © Google or downloaded through the Dryad 12 , an international repository of data underlying peer-reviewed articles.
Taxonomic procedures. The taxonomic treatment method follows Winston (1999). The description and identification key were made using the DELTA program. Morphological characters for species of Decevania were imported to the DELTA editor (Description Language for Taxonomy 13 ) (Dallwitz 1980, Dallwitz et al. 1999). The species description was generated by DELTA <tonart> with output in the format of "character: character state(s)"; Identification key by DELTA <key> (Dallwitz 1980, Dallwitz et al. 1993. The dichotomous, pictoral identification key follows the procedures of Winston (1999). For the purpose of this description, the new species are diagnosable by putative autapomorphies or by a unique combination of fixed character states.
General terminology. Anatomical terminology follows the Hymenoptera Anatomy Ontology project (HAO 14 ) using the proofing tool available through the Hymenoptera Glossary 15 (Yoder et al. 2010). Some terms are also included from Deans and Huben (2003) and Kawada and Azevedo (2007). The list of terminology is illustrated and labeled to facilitate their use (see table 1).
Head ( Fig. 1-2 , 5-7, 9). Head: long and stiff setae present evenly distributed; close to mesosoma. Vertex: slightly convex in lateral view; nitid with some small and sparse punctures. Ocelli: equal in size; arranged in obtuse isosceles triangle; anterior ocellus: separated from posterior ocellus by one ocellar diameter; anterior ocellus: not reaching the imaginary line between the anterior margin of posterior ocelli; posterior ocelli: separated by three ocellar diameters. Upper face: nitid with some sparse punctures. Eye: subovoid (lateral view); detached from dorsal profile of head; height of eye: as high as anterior margin of mesopleuron. Circumocular sulcus: absent. Postorbital carina: present; extending from anterior base of mandible to 3/4 the height of eye; strongly sinuous; narrower than postgenal sulcus. Antennal foramen: positioned at the same level as the top of the eye orbit; separated by one antennal foramen diameter; antennal rim: elevated laterally. Scape: long and stiff setae present evenly distributed; as long as F8. Pedicel + flagellomere 1: longer than wide; pedicel: as long as F1; flagellum: evenly and densely setose with some sparse and long setae. Median process of lower face: very weak in lateral view (difficult to see). Orbital band: strong, narrow and straight striae to the ventral margin of antennal foramen. Malar sulcus: present and conspicuous, differs from orbital band striae. Malar space: 0.64 times the height of eye (greater length). Clypeus: projecting medially; apical margin dilated and convex laterally. Mandible: two visible teeth, apical tooth longer and sharper than basal tooth. Mesosoma ( Fig. 1 -2, 9, 11-12). Pronotum: long and stiff setae present evenly distributed. Pronotal neck: obscured. Dorsal pronotal area: concealed medially. Dorsolateral area of pronotum: expanded posteriorly into a lobe. Pronotal suprahumeral sulcus: scrobiculate, with a large fovea anterior to the lobe. Transverse pronotal carina: acuminate and extending along the anterior margin of pronotum. Mesothoracic spiracular incision: strongly curved and almost closed into an orifice. Lateral and dorsolateral pronotal area: not clearly separated by a carina (inconspicuous). Lateral pronotal area: narrow, same width between the upper eye orbit and occipital carina (widest point); vertical and covered by a row of fovea (transverse pronotal sulcus). Mesonotum: slightly raised (lateral view: compared with propodeum). Mesoscutum: 2.0 times wider than long; nitid with a few, sparse and regular foveae. Anterior mesoscutal sulcus: present as continuous furrow. Notaulus: present as continuous furrow, slightly curved towards the middle and not reaching the posterior margin. Median lobe of mesoscutum: slightly curved anteriorly (lateral nitid in the middle with closed fovea laterally; bulging posteromedially; with a delicate median convexity on the posterior margin, but without overlap on metanotum. Scutoscutellar sulcus: not reaching the transscutal articulation, covered by a large and subcircular fovea. Metanotum: dorsolateral area covered by moderate (cuticle visible) layer of setae. Metanotum and metascutellum: form a continuous structure. Metascutellum: as a flat and nitid structure. Epicnemial carina: without median process (continuous shape). Prespecular sulcus: composed of one fovea. Anterior mesopleural area: covered by a row of rectangular impressions to femoral groove. Speculum: slightly dilated just above the middle of femoral groove. Mesepimeral sulcus: present as a row of irregular and subcircular foveae from posterodorsal mesepimeral area to mesocoxal foramen. Posterodorsal mesepimeral area: scrobiculate (narrow and shallow). Posterior mesepimeral area: curve and elongated posteriorly (closer to metacoxal foramen). Femoral groove: weakly concave; unsculptured medially. Mesopleural pit: absent. Ventral mesopleural area: covered by a subcircular and adjacent fovea; long and stiff setae present evenly distributed. Mesosternum: higher compared to metasternum; mesosternum foveate (irregular) with an open area (punctate) laterally. Mesodiscrimen: present as a flat and inconspicuous sulcus. Mesocoxa: distant 2.5 times (width of mesocoxa) from procoxa; adjacent to metacoxa. Meso-and metacoxa: without a pair of processes between coxae. Metapleuron (metapleural arm to metacoxal foramen): at least 3 times longer than wide. Metapleural carina: straight and parallel with concave lower metapleural area. Upper metapleural area: covered by a row of rectangular foveae. Lower metapleural area: lower region covered by an irregular polygonal fovea; long and stiff setae present, evenly distributed. Metapleural pit: present. Anterior area of metapleural pit: acute isosceles triangle shaped and covered by an irregular fovea. Metapleural epicoxal sulcus: present as a row of large and subrectangular foveae. Metanotum and propodeum: form a continuous structure. Propodeum: irregular foveae (dorsal) to regularly areolate (lateral). Dorsal propodeal area: long and stiff setae present, evenly distributed. Lateral propodeal carina: absent. Lateral propodeal area (upper region): long and stiff setae present evenly distributed. Adpetiolar strip: longer than wide. Nucha: slightly elevated (lateral view). Upper region of propodeal declivity (ventral to nucha): projection present and longer than base. Middle area of propodeal declivity: with long and stiff setae present evenly distributed. Posterior edge of metapectalcomplex: curved (lateral view).
Wings (Fig. 8). Apex of fore wing: bordered by long setae. Costal cell: the same length as head + mesosoma combined (dorsal view). Stigmal vein: as wide as costal cell. 1R1 vein: as long as stigmal vein, with slightly dilated apex. M+CU, 1CU and 2CU veins combined: extending past the propodeal declivity. 1CUb and 2CU vein: combined to form an angulated angle (45 degrees). 2CU vein: present with a slight dilatation distally. Hind wing: three hook-shaped hamuli of equal size; fusiform and three times longer than wide. Jugal lobe: present, slender and extending past the propodeal spiracle.
Diagnosis. Eye: 1.8-2.0 times higher than wide. Postorbital carina: present and complete; conspicuously outlined; detached from the margin of lower eye orbit; sinuous (see malar space); reaching the top of eye orbit (some foveae may also be present and are part of carina). Antennal foramen: inserted at the same level as the top of eye orbit; antennal rim: conspicuously elevated laterally (head lateral view). Median lobe of mesoscutum: slightly curved or flat (lateral view). Notaulus: present as continuous furrow. Metanotum: not concealed by mesoscutellum (dorsal view). Sculpture of hind femur: unsculptured (nitid, autapomorphy for D. feitosai sp. n.). Posterior edge of metapectal complex: curved (lateral view). Dorsal area of propodeal declivity (ventral to nucha): projection present and longer than base. Petiole: longer than or as long as dorsal margin of tergite 1. 1R1 vein: present and elongate.
Etymology       Kawada, 2007. Eye: 1.8-2.0 times higher than wide. Postorbital carina: present and complete; conspicuously outlined; closer to the margin of lower eye orbit; slightly sinuous (see malar space); reaching the top of eye orbit (some foveae may also be present and are part of carina). Antennal foramen: positioned above the level of the top of eye orbit; antennal rim: inconspicuous elevated laterally (head lateral view). Median lobe of mesoscutum: curved (lateral view). Notaulus: present as series of elongate foveae. Metanotum: not concealed by mesoscutellum (dorsal view). Sculpture of hind femur: protuberant sculpture (colliculate). Posterior edge of metapectal complex: angulated (lateral view). Dorsal area of propodeal declivity (ventral to nucha): projection present, shorter than base or as long as wide. Petiole: shorter than tergite 1. 1R1 vein: absent.

D. parva
Material examined. Female. COLOMBIA: Cundinamarca, PNN Chingaza Bosque, Palacio, 4°31'N, 73°45'W, 2930m, Malaise, 20.xii.2000-05.i.2001, L. Cifuentes leg., M. 1223. Kawada, 2007. Eye: 1.8-2.0 times higher than wide. Postorbital carina: present and complete; conspicuously outlined; detached from the margin of lower eye orbit; slightly sinuous (see malar space); reaching the top of eye orbit (some foveae may also be present and are part of carina). Antennal foramen: positioned above the level as the top of eye orbit; antennal rim: inconspicuously elevated laterally (head lateral view). Median lobe of mesoscutum: curved (lateral view). Notaulus: present as series of subcircular foveae. Metanotum: concealed by mesoscutellum (dorsal view). Sculpture of hind femur: irregular sculpture (rugulose). Posterior edge of metapectal complex: angulated (lateral view). Dorsal area of propodeal declivity (ventral to nucha): projection present, shorter than base or as long as wide. Petiole: shorter than tergite 1. 1R1 vein: present and elongated.  Kawada, 2007. Eye: 1.6 times higher than wide. Postorbital carina: present, but some portion not visible; inconspicuously outlined; closer to the margin of lower eye orbit; reaches the top of eye orbit (some foveae may also be present and are part of carina). Antennal foramen: positioned above the level as the top of eye orbit; antennal rim: conspicuous elevated laterally (head lateral view). Median lobe of mesoscutum: slightly curved or flat (lateral view). Notaulus: present as series of subcircular foveae. Metanotum: not concealed by mesoscutellum (dorsal view). Sculpture of hind femur: regular sculpture (imbricate). Posterior edge of metapectal complex: angulated (lateral view). Dorsal area of propodeal declivity (ventral to nucha): projection present and longer than base. Petiole: longer than or as long as dorsal margin of tergite 1.