Endasys gibbosus Gonzalez-Moreno et Bordera, sp. nov.
Creators: name: González-Moreno, Alejandra
name: Bordera, Santiago
name: Delfin, Hugo
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Ichneumonidae
Endasys
Endasys gibbosus

description: Endasys gibbosus González-Moreno et Bordera, sp. nov.
(Figs 1 A, 1C, 2A–2F, 3A, 3C, 3E, 4A, 4C)
Diagnosis. Head and mesosoma black (Figs 1 A, 1C). Coxa and trochanter orange in female, orange-brown in male. Three or four tyloids in male flagellum (Fig. 2 B). Clypeus black, upturned (Fig. 2 A), more evident in male, propodeal apophysis as low crest (Figs 2 D, 3E). Flagellum bicolored dorsally. Median lobe of mesoscutum anteriorly more raised than lateral lobes (Figs 1 A, 1C, 2C, 3C) with coarse dense punctures. Metapleuron aerolate-rugose (Figs 2 F, 4C). Area superomedia with strongly elevated longitudinal wrinkles (Figs 2 D, 3E). Malar space very reduced in male, about 0.1 times as basal mandibular width (Fig. 2E).
Description. MALE (32 specimens). Body length 6.0–8.0 mm; head height 0.9–1.1; head width 1.6–1.7; mesosoma length 2.7; mesosoma width (mesoscutum) 1.4–1.6; fore wing maximum length 4.5–6.0; first metasomal tergite length 0.6–0.8.
Head (Figs 2 A–2C, 2E). Transverse, 1.8–1.9 times as wide as long, in dorsal view slightly constricted behind eyes. Gena coarse and densely punctate, in dorsal view 0.6–0.8 times as long as length of eye. Vertex and frons rugulose punctuate (Fig. 2 C). Posterior ocellus separated from eye by 1.0–1.2 times its own maximum diameter. Space between hind ocelli 1.6–1.8 times their diameter. Face strongly convex in central part, 0.6 as high as wide, densely and deeply foveolate. Clypeus about 1.8–2.0 times as wide as high, densely foveolate, convex, apical margin truncated, smooth, glabrous, sharply upturned (Fig. 2 A). Upper mandibular tooth clearly longer than lower tooth. Supraclypeal suture stout, conspicuous; malar space foveolate, 0.1 times as long as basal mandibular width (Fig. 2E); antenna filiform, slender, from base to apex strongly tapered; flagellomeres 1–22 longer than wide, the first about 2.7–2.9 times as long as wide; 3–4 tyloids in flagellomeres 10–13 (Fig. 2 B). Genal carina joining oral carina barely distad of base of mandible.
Mesosoma (Figs 2 C – 2F). Propleuron punctate. Upper part of pronotum punctate, lower part ruguloselacunose or longitudinally wrinkled. Epomia strong, evanescent near dorsal margin of pronotum (Fig. 2E). Mesoscutum polished, shiny, coarse, densely punctate. Notaulus strongly impressed, deep in front margin of mesoscutum, reaching tegula level, median lobe of mesoscutum clarly more prominent anteriorly than lateral lobes, with coarse, dense pits. Posterior edge of mesoscutum with trasverse break rather narrow, weak. Prescutellar transverse groove with strong median longitudinal carina. Scutellum flat, without lateral carinae, punctate (Fig. 2 C). Mesopleuron punctate, except central area smooth, with very sparse punctures, or almost impunctate. Epicnemial carina stout, its upper end dorsad of subtegular ridge. Sternaulus strongly impressed on anterior half of mesopleuron. Metapleuron very strongly areolate-rugose (Fig. 2 F). Propodeum carinated, all areas strongly rugose punctate. Area superomedia broadly hexagonal with strongly elevated longitudinal wrinkles. Area basalis transverse very reduced. Area petiolaris strongly concave and transversally wrinkled. Area spiracularis small and triangular. Area lateralis much longer than wide also triangular. Both transverse carinae of propodeum stout, complete, apical carina forming sublateral lower crest. Propodeal spiracle oval, closer to lateral longitudinal carina than to pleural carina (Fig. 2 D). Front wing vein Rs straight; crossvein 1mcu variable, usually absent; marginal cell 0.3 times as long as its maximum width; crossvein 2m-cu vein weakly inclivous, with one wide bulla. Areolet small, pentagonal, strongly convergent towards front side, crossvein 3rs-m usually not pigmented. Vein Cu-a opposite vein Rs&M; abscissa of Cu1 between 1m-cu and Cu1a about 1.8–2.2 times as long as Cu1b, this one, strongly inclivous. Hind wing vein Cu-a clearly inclivous, 0.3 times as long as abcissa of M+Cu between M and Cu1. Hind femur 3.7–4.0 times as long as high.
Metasoma (Fig. 2 D). First tergite 1.8–2.0 as long as its maximum width, smooth and polished, with some sparse setiferous punctures. Median dorsal carinae only present on petiole, becoming obsolescent on the hind half of postpetiole. Postpetiole 0.5–0.6 times as long as its maximum width, nearly parallel sided (Fig. 2 D). Second and rest of tergites smooth or finely coriaceous, with small setiferous punctures, denser in tergites 3– 7. Second metasomal tergite 0.6 times as long as its maximum width (dorsally measured). Thyridia circular very small next to margin.
Color. Body black. Scape and pedicel orange, basal flagellomeres dorsally light orange. Mandible dark brown with black teeth. Palpi yellow. Hind leg orange with coxa dorsally brown. Pterostigma dark brown. Wing yellowish. Tegula black.
FEMALE (2 specimens). Body length (without ovipositor) 6.0–7.0 mm; head maximum height 1.1–1.2; head width 1.4–1.6; mesosoma length 2.6–3.0; mesosoma width (mesoscutum) 1.6; fore wing maximum lenght 6.0; first metasomal tergite length 1.0; ovipositor sheaths length 1.5.
Head (Figs 1 C, 3A, 4A). Transverse, 1.7–1.9 times as wide as long; in dorsal view not constricted behind eyes. Gena densely foveolate, 1.0 times as long as maximum length of eye (dorsal view). Vertex and frons rugulose-lacunose with very dense coarse punctures. Eye conspicuously pilose (Figs 3 A, 4A). Posterior ocellus separated from eye by 1.4–1.7 times its own maximum diameter. Space between hind ocelli 2.1 times their diameter. Face 0.5 times as long as wide. Clypeus about 2.1–2.3 times as wide as long; malar space 0.5– 0.7 times as long as basal mandibular width (Fig. 4 A); antenna moderately stout, becoming slightly more slender towards apex (Fig. 1 C), with 20 flagellomeres, the first about 1.5 as long as wide.
Mesosoma (Figs 3 A, 3C, 3E, 4C). Propleuron foveolate. Pronotum long with a dorsal median circular depression (Fig. 3 A). Mesoscutum as in male, in central part strongly rugulose-lacunose. Notaulus as in male but with a deep concavity next to anterior margin of mesoscutum; reaching tegula level (Fig. 3 C). Mesopleuron foveolate, lower two thirds usually longitudinally wrinkled. Area superomedia confluent with area dentipara and lateralis forming a broad inverted U area, with strong wrinkles. Area externa anteriorly punctate and posteriorly rugulose-lacunose (Fig. 3 E). Hind femur 3.0–3.1 times as long as high.
Metasoma (Fig. 3 E). First tergite 1.4–1.5 times as long as its maximum width. Postpetiole 0.4–0.5 times as long as its maximum width, sides slightly divergent posteriorly (Fig. 3 E). Second metasomal tergite 0.4– 0.5 times as long as its maximum width (dorsally measured). Thyridia indistinct. Ovipositor straight, 0.7 times as long as the hind tibia and 1.1 times as long as basal 4 hind tarsomeres.
Color. Head and mesosoma black. Scape, pedicel, mandible (except teeth) and leg orange. Metasoma orange to reddish brown. Flagellomeres 10–11 light yellow, the rest dark brown to black. Other features as in male.
Hosts. Unknown.
Habitat. Specimens was collected in June and July in a dry forest characterized by trees reaching 10–20 m in height, 50%–75% of which drop their leaves during the dry season, and a shrub and herbaceous layer that develops during the rainy season. Epiphytic plants are abundant (Flores et Espejel 1994). Common species in this dry forest include Acacia pennatula (Schltdl. et Cham.) Benth., Caesalpinia gaumeri Greenm., Lysiloma latisiliquum (L.) Benth., Enterolobium cyclocarpum (Jacq.) Griseb., Piscidia piscipula (L.) Sarg., and Pithecellobium brownii Standl. (Fabaceae), Bursera simaruba (L.) Sarg. (Burseraceae), Guazuma ulmifolia Lam. (Sterculiaceae), Vitex gaumeri Greenm. (Verbenaceae), and Metopium brownei (Anacardiaceae).
Remarks. Endasys gibbosus sp. nov., can be distinguished from all other Neotropic and Nearctic Endays species by the combination of characters given in the diagnosis. Nevertheless, two Nearctic species are closely related to E. gibbosus: males of E. julianus Luhman, 1990 and females of E. subclavatus Say, 1836. The former by having more than 3 tyloids, clypeus strongly upturned, apophysis weak, mesopleuron smooth, postpetiole subquadrate and metasoma partially black, but males of E. gibbosus are clearly distinguishable in having the median lobe of mesoscutum clearly more raised than lateral lobes; metapleuron aerolate-rugose; basal half of antenna light orange or yellow, flagellum strongly tapered from base to apex; postpetiole wider than long, 0.6–0.7 as long as wide; hind femur, tibia and four basal tarsus entirely orange and metasoma entirely black, except sometimes base of last tergites, which is orange or brown. Females of E. subclavatus are similar to the new species because both have a strong sculpturation in head, gena and frons densely and strongly punctuate and hind femur and tibia entirely orange, but females of E. gibbosus can be clearly separated by the median lobe of mesoscutum, anteriorly more raised than lateral lobes, with rugulose and coarse dense punctures; gena rugulose-punctate; metapleuron very strongly aerolate-rugose; area superomedia with strong elevated longitudinal wrinkles and tegula and pterostigma black.
Etymology. This species is named referring to the strongly raised median lobe of mesoscutum.
Distribution records. Mexico.
Material examined. HOLOTYPE ɗ (CCBA): Mexico, Yucatán State, Ría Lagartos Reserve, Estación Cuyo, dry forest, 01–14.VII.2008; A González-Moreno leg.; Malaise trap. Dry mounted. PARATYPES: 15 ɗɗ (CCBA): same locality and date as holotype; 16 ɗɗ(CEUA): same locality, 10–24.VI.2009; 2 ɗɗ (AEIC): same locality, 01–14.VII.2008; 1 ɗ (AEIC): same locality, 10–24.VI.2009; 1 Ψ(CEUA): same locality, 01– 14.VII.2008; 1 Ψ (CCBA): same locality, 08–22.VII.2009; all of them A González-Moreno leg.; Malaise trap. Dry mounted.
description: Published as part of González-Moreno, Alejandra, Bordera, Santiago & Delfin, Hugo, 2010, A new species of Endasys Förster (Hymenoptera, Ichneumonidae, Cryptinae) from Mexico, pp. 61-68 in Zootaxa 2648 on pages 63-67, DOI: 10.5281/zenodo.276189