Gonatocerus, Nees, 1834

Triapitsyn, Serguei V., Huber, John T., Logarzo, Guillermo A., Berezovskiy, Vladimir V. & Aquino, Daniel A., 2010, Review of Gonatocerus (Hymenoptera: Mymaridae) in the Neotropical region, with description of eleven new species, Zootaxa 2456, pp. 1-243 : 80

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 .

Figures

FIGURES 158 – 161. Gonatocerus (Gahanopsis) arkadak ♀ (holotype): 158, antenna; 159, mesosoma and metasoma; 160, dorsellum and propodeum; 161, wings.

FIGURES 168 – 171. Gonatocerus (Gahanopsis) pusilus ♀ (168 – Loreto, Misiones, Argentina; 169 – 171 – Universidade Federal de Minas Gerais campus, Belo Horizonte, Minas Gerais, Brazil): 168, antenna; 169, mesosoma; 170, forewing; 171, hind wing.

FIGURES 172 – 174. Gonatocerus (Gahanopsis) pusilus ♂ (Loreto, Misiones, Argentina): 172, antenna; 173, dorsellum and propodeum; 174, wings.