Dmitriohormius
A smallgenus with 2 species described. It recovered its generic status after molecular studies [1], [2].
References
- , “A new subgenus of the genus Callihormius Ashmead, 1900 (Hymenoptera: Braconidae: Doryctinae) from Mexico”, Proceedings of the Russian Entomological Society. St Petersburg, vol. 85, no. 1, pp. 151-156, 2014.
- , “Molecular phylogenetics disentangles the limits of a group of related Neotropical doryctine parasitoid wasp genera (Hymenoptera : Braconidae)”, Invertebrate Systematics, vol. 34, pp. 769-797, 2020.
Unknown.
Head. Head not depressed, transverse. Ocelli arranged in triangle with base slightly larger than sides. Frons slightly concave, without median carina or furrow. Eyes glabrous. Occipital carina dorsally complete, not fused below with hypostomal carina and widely obliterated. Malar suture absent. Clypeus with distinct but short lower flange. Hypoclypeal depression medium size and round. Postgenal bridge very narrow. Maxillary palpi medium length, 6-segmented, labial palpi 4-segmented, third labial segment not shortened. Scape of antenna rather narrow and long, without apical lobe and basal constriction, its ventral margin (lateral view) shorter than dorsal margin. First flagellar segment subcylindrical, slightly curved outer, longer than second segment.
Mesosoma. Mesosoma not depressed. Neck of prothorax rather short, without pronope. Pronotum dorsally distinctly convex; pronotal carina distinct and situated in anterior third; anterior flange wide and curved up. Propleural dorsoposterior flange long and wide. Mesonotum not highly and gently-roundly elevated above pronotum. Median lobe of mesonotum without median longitudinal furrow, without anterolateral corners. Notauli completely absent. Prescutellar depression deep, with numerous (seven) carinae. Scuto-scutellar suture distinct and complete. Lateral longitudinal flanges on the level of prescutellar depression low. Scutellum distinctly concave on wide area, with high lateral lobes. Subalar depression rather deep and wide. Mesopleural pit absent. Metanotum without median tooth (lateral view). Sternaulus (precoxal sulcus) shallow or very shallow, narrow, long, slightly curved. Prepectal carina distinct, almost absent laterally. Postpectal carina absent. Metapleural flange short, wide, rounded apically. Propodeum without areas delineated completely by carinae; lateral propodeal tubercles low and wide; propodeal bridge absent. Propodeal spiracles very small and round. Metapleural suture distinct; propodeum laterally near suture with wide concave longitudinal depression.
Wings. Pterostigma of fore wing wide. Radial vein arising before middle of pterostigma. Radial cell not shortened. Both radiomedial veins present. Second radiomedial cell long and rather wide. Recurrent vein slightly postfurcal. Nervulus distinctly postfurcal. Discoidal cell long petiolate anteriorly, strongly narrowed forwards. Recurrent vein very short; recurrent and basal veins distinctly divergent posteriorly. Mediocubital vein strongly curved towards anal vein in apical half, medially with oval sclerotised spot densely covered by long, erect, thickened black setae forming subpyramidal construction. Parallel vein interstitial. Brachial cell widely open postero-apically. Transverse anal veins absent. Hind wing with three hamuli. First abscissa of costal vein 0.7 times as long as second abscissa. Radial vein arising from costal vein far from basal vein. Radial cell indistinct; radial vein very hyaline and developed only basally. Medial cell narrow, slightly widened towards apex, 0.3 time as long as hind wing. Nervellus present, oblique. Submedial cell large. First abscissa of mediocubital vein 1.8 times longer than second abscissa. Recurrent vein short, unsclerotised, almost perpendicular to mediocubital vein.
Legs. All tibiae distinctly thickened, claviform. Fore tibia with numerous, dense, short and thick spines arranged in almost single line. Middle tarsal segments long. Hind coxa short and rather wide, with distinct basoventral corner and tooth. Hind femur wide, slightly curved, without dorsal protuberance. Basitarsus of hind tarsus long, 0.55 times as long as second-fifth segments combined.
Metasoma. First tergite not petiolate, rather long and wide. Acrosternite of first segment elongated, about 0.3 times as long as first tergite, slightly not reaching spiracular levels. Dorsope of first tergite small and narrow, basolateral lobes absent. Spiracular tubercles fine, situated in basal 0.3 of tergite; dorsal carinae complete and rather distinct. Second tergite with very shallow and oblique sublateral furrows. Suture between second and third tergites shallow and narrow, but distinct, distinctly convex medially, with rather deep lateral breaks. Third tergite without transverse furrow. Second-sixth tergites with separate laterotergites. Fourth-sixth tergites submedially with transverse line of short, semi-erect pale setae. Hypopygium with short double process on medioposterior margin. Ovipositor long, longer than metasoma. Apical part of ovipositor dorsally with very shallow nodes [1].
See also Gadelha et al 2020 [2].
References
- , “A new subgenus of the genus Callihormius Ashmead, 1900 (Hymenoptera: Braconidae: Doryctinae) from Mexico”, Proceedings of the Russian Entomological Society. St Petersburg, vol. 85, no. 1, pp. 151-156, 2014.
- , “Molecular phylogenetics disentangles the limits of a group of related Neotropical doryctine parasitoid wasp genera (Hymenoptera : Braconidae)”, Invertebrate Systematics, vol. 34, pp. 769-797, 2020.
It is distinguished from the subgenus Callihormius s.str. by the scutellum distinctly concave on wide median area (more or less distinctly convex in Callihormius), with high subvertical lateral lobes (without lateral lobes in Callihormius), the mediocubital vein medially with oval sclerotised spot densely covered by long, erect, thickened black setae forming subpyramidal construction (without such spot of setae in Callihormius) [1].
It can be distinguished from similar genera by its striate vertex; antennae longer than 30 segments; fore wing vein M+CU strongly curved, with a cluster of thicker dark setae on its curve, sometimes forming a pyramidal structure; and ovipositor much longer than metasoma [2].
References
- , “A new subgenus of the genus Callihormius Ashmead, 1900 (Hymenoptera: Braconidae: Doryctinae) from Mexico”, Proceedings of the Russian Entomological Society. St Petersburg, vol. 85, no. 1, pp. 151-156, 2014.
- , “Molecular phylogenetics disentangles the limits of a group of related Neotropical doryctine parasitoid wasp genera (Hymenoptera : Braconidae)”, Invertebrate Systematics, vol. 34, pp. 769-797, 2020.
Neotropical.