Neurocrassus
A moderate genus with less than 20 species described [1], [2].
References
- , “Taxapad 2012, Ichneumonoidea 2011. Database on flash-drive.”. www.taxapad.com, Ottawa, Canada., 2012.
- Citekey 1985 not found
Some species of Neurocrassus have been reared from xylophagous beetle larvae of the families Cerambycidae and Curculionidae [1].
References
Head weakly transverse or subcubical; ocelli usually in equilateral triangle; dorsal tentorial pits near antennal sockets usually large, distinct and narrow, but sometimes small and round, rarely indistinct; occipital carina distinct and usually not joined to hypostomal carina near mandible; subocullar suture absent; eye without hairs; palpi formula 6-4; antennae slender, filiform; mesoscutum highly elevated above prothorax; notauli deep, complete, crenulate; prepectal carina distinct; sternauli deep and usually smooth; propodeum with distinct areas; radial cell of fore wing unshortened; first and second radiomedial veins present; recurrent vein postfurcal, antefurcal or almost interstitial; nervulus distinctly postfurcal; brachial cell closed distally; parallel vein not interstitial; fore wing of male usually with stigma-like enlargement of basal and first abscissa of cubital veins; submedial cell of hind wing large; recurrent vein present; hind coxa with distinct basoventral tooth; fore tibia with spines; all femora thickened; first abdominal tergite with distinct dorsope, spiracles near its middle or in basal third; second tergite without depressions and areas; third tergite with shallow and usually distinct transverse depression; second suture usually weak and curved; ovipositor sheath not longer than metasoma; vertex smooth, rarely granulate; mesoscutum densely granulate [1].
References
- , “East Asiatic species of the genus Neurocrassus (Hymenoptera: Braconidae).”, Zoosystematica Rossica, vol. 2(1), pp. 161-172, 1993.
Neurocrassus is very closely related to Ontsira Cameron, 1900, but is distinguished by the presence, in Neurocrassus, of distinct (large, with maximum diameter about 0.5–0.8 times, or small, about 0.1–0.3 times as wide as antennal socket, respectively) upper tentorial pits on the posterolateral margins of antennal sockets (absent in Ontsira); by the presence of a sclerotised enlargement of the veins of the male fore wing. However, variability of size of this feature, from large and bean-shaped to completely absent in several cases, has been observed within Neurocrassus [1]. See also [2], [3], [4], [5]
References
- , “Chinese Species of the Genus Neurocrassus Šnoflak, 1945 (Hymenoptera:Braconidae: Doryctinae), with a Key to Asian Species.”, Annales Zoologici (Warsaw), vol. 63, no. 2, pp. 235-249, 2013.
- , “Neurocrassus gen.nov. (Hym. Braconidae).”, Entomologicke Listy, vol. 8, pp. 25-27, 1945.
- , “[On braconid wasps of the genus Ontsira Cameron (Hymenoptera, Braconidae) of East Asia.]”, Entomologicheskoe Obozrenie, vol. 77(2), pp. 462-526, 1998.
- , “Molecular phylogeny and historical biogeography of the cosmopolitan parasitic wasp subfamily Doryctinae (Hymenoptera:Braconidae)”, Invertebrate Systematic, vol. 22, pp. 345-363, 2008.
- , “Doryctinae (Hymenoptera: Braconidae) of Japan”, Natura optima dux Foundation, Warszawa, vol. 1, pp. 1-806, 2009.
Afrotropical, Palaearctic, Oceanic, Oriental. But undescribed specimens have been recorded in Nearctic [1].
References
- , “Chinese Species of the Genus Neurocrassus Šnoflak, 1945 (Hymenoptera:Braconidae: Doryctinae), with a Key to Asian Species.”, Annales Zoologici (Warsaw), vol. 63, no. 2, pp. 235-249, 2013.