Review of Cosmocomoidea (Hymenoptera: Mymaridae) from China, with descriptions of two new species Author Aishan, Zhulidezi Author Triapitsyn, Serguei V. Author Xu, Mei Author Lin, Nai-Quan Author Hu, Hong-Ying text Zootaxa 2016 2016-03-04 4085 4 525 535 journal article 31424 10.11646/zootaxa.4085.4.4 ca79735b-9726-4a85-b3d7-c05f08a966bf 1175-5326 1052759 80ADD1A9-F5F4-4D96-A1B0-B3BE434584A0 Cosmocomoidea Howard, 1908 Cosmocomoidea Howard 1908 : 68 –69 (type species: Cosmocomoidea morrilli Howard , by monotypy); Huber 2015 : 15 –22 (revived status, diagnosis, redescription, discussion, distribution, list of species in the world). Gonatocerus ( Cosmocomoidea ) : Triapitsyn et al. 2010 : 94 –95 (as a subgenus under Gonatocerus ); Triapitsyn 2013a : 117 –119 (taxonomic history, diagnosis, key to Palearctic species). Diagnosis. Specimens of most species are relatively large for fairyflies, average body length more than 1 mm ; subantennal sulci strongly convergent and close together at mouth margin; ocellar triangle with 2 setae; female antenna with funicle 8-segmented; pronotum divided into two abutting lobes; dorsellum triangular to rhomboidal; propodeum with two submedian carinae; fore wing often with a large bare area behind marginal vein. Cosmocomoidea was erected by Howard (1908) with C. morrilli Howard as its type species. Annecke & Doutt (1961) classified it as a subgenus under Lymaenon Walker. Both Matthews (1986) and Huber (1988) treated Cosmocomoidea as the ater species group of Gonatocerus . Zeya & Hayat (1995) revised the Indian species of Cosmocomoidea also within the ater -group of Gonatocerus , as did Zeya & Khan (2012) and Manickavasagam & Rameshkumar (2013) . Triapitsyn et al . (2010) and Triapitsyn (2013a , b ) classified Cosmocomoidea as a subgenus under Gonatocerus and reviewed its species from the Neotropical, Palaearctic, and Nearctic regions, respectively. Huber (2015) divided Gonatocerus into several genera within the tribe Gonatocerini . In his classification, which we follow here, Cosmocomoidea is regarded as a valid genus, though phylogenetic relationships among the closely related genera of Gonatocerini remain largely uncertain and may require a combined morphological and molecular analysis to resolve them more clearly.