Review of Grotiusomyia Girault (Chalcidoidea: Eulophidae), an exclusively New World genus, including 17 new species Author Hansson, Christer text Zootaxa 2023 2023-05-04 5278 1 39 77 http://dx.doi.org/10.11646/zootaxa.5278.1.2 journal article 10.11646/zootaxa.5278.1.2 1175-5326 7894979 9D0E61E2-298C-4248-BD76-A2C392372F90 Grotiusomyia flavicornis Girault Figs 1 , 27 , 46 , 76 Grotiusomyia flavicornis Girault, 1917:95 . Syntypes in USNM, not examined. Diagnosis . Mandibles yellowish-brown with a row of small teeth at apex; flagellum yellowish-brown, 0.6× as long as width of mesoscutum, F4 0.6× as long as wide, apex of clava pointed ( Figs 1 , 46 ); frons between scrobes and eyes and vertex ( Fig. 76 ) with strong reticulation; occipital margin with an edge behind ocellar triangle ( Fig. 76 ); mesoscutum and mesoscutellum with same reticulation ( Fig. 27 ); mesoscutellum convex with purplish tinges; dorsellum slightly convex with very lateral parts and medioposterior part concave, smooth and shiny; fore wing with five setae in apico-dorsal part of costal cell, completely hyaline ( Fig. 1 ); fore and mid coxae black ( Fig. 1 ); gaster ( Fig. 27 ) 1.7× as long as wide with apex pointed; Gt 1 0.4× as long as length of gaster, smooth, posterior margin slightly curved forwards; Gt 6 0.2× as long as length of gaster with anterior part 1.7× as wide as width of posterior part, posterior margin straight with sharp edge. Distribution . U.S.A. ( District of Columbia (Girault 1917), North Carolina ( Peck 1963 ), Iowa (new record). Hosts . Unidentified Pyralidae ( Lepidoptera ) on Quercus (Girault 1917) . Material . Non-type material ( 1♀ , in NHMUK ): USA , Iowa , Audubon Co. , 16.viii.1952 (det. Burks 1953) .