Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species Author Triapitsyn, Serguei V. Author Huber, John T. Author Logarzo, Guillermo A. Author Berezovskiy, Vladimir V. Author Aquino, Daniel A. text Zootaxa 2010 2010-05-14 2456 1 243 journal article 32054 10.5281/zenodo.894928 77799ae7-9459-43e9-af68-c88aa98852a5 1175-5326 894928 Subgenus Gonatocerus ( Gahanopsis Ogloblin, 1946 ), syn. & stat. n. Gahanopsis Ogloblin 1946 : 286 , 288 (as subgenus of Lymaenon ). Type species: Lymaenon ( Gahanopsis ) deficiens Ogloblin , by original designation. Gahanopsis Ogloblin : Annecke & Doutt 1961 : 4 (key), 13; De Santis 1979 : 363 –364 (catalog); Huber 1986 : 220 (host record); Luft Albarracin et al. 2009 : 8 (list, distribution in Argentina), 13 (key), 17 (illustration). Gonatocerus Nees ( deficiens species group, without a formal synonymy of Gahanopis under Gonatocerus ): Huber 1988 : 23 –24; Yoshimoto 1990 : 37 , 41 (key). Diagnosis. Pronotum entire, very short and barely visible in dorsal view; pronotal spiracle huge; mesoscutum short, much wider than long; dorsellum with posterior margin sinuate, with a small projection medially ( Figs 160 , 169 , 173 ); propodeum divided medially by a longitudinal groove; funicle of female antenna 7- or 8-segmented; forewing setae as dense as in G. ( Lymaenon ) and occurring to base of marginal vein, though sometimes with a central clear area free of setae behind marginal vein; ovipositor often projecting strongly forward under mesosoma. Gonatocerus ( Gahanopsis ) could be a derived offshoot of G. ( Lymaenon ) that parasitizes mainly eggs of Membracidae . Distribution. Neotropical region. Hosts. Aetalionidae and Membracidae .