Isocybus Förster, 1856

Awad, Jessica, Krogmann, Lars & Talamas, Elijah, 2023, Taxonomic history and review of the Förster genera of Platygastridae (Hymenoptera: Platygastroidea), European Journal of Taxonomy 875 (1), pp. 1-46 : 13

Genus Isocybus Förster, 1856

Isocybus Förster, 1856: 108 , 114–115. Type species Platygaster grandis Nees, 1834 by subsequent designation by Ashmead 1893: 327.

Remarks

Förster described Isocybus as having a cubical head, a mesoscutellum with a tuft of setae, and a relatively large body size. He included the species Platygaster cotta Walker, 1835 , Pl. erato Walker, 1835 , and Pl. matuta Walker, 1835 , the types of which are located in the NMINH and the NHMUK. He also included Pl. ruficornis ( Latreille, 1805) , which influential authors of the time considered to be a senior synonym of Pl. grandis Nees, 1834 ( Walker 1835; Curtis 1837). Platygaster grandis Nees, 1834 is the type species of Isocybus . The type material is unknown, probably lost. Four specimens in the Förster collection are marked as original exemplars of Pl. grandis , but we do not have reliable evidence that they could be considered part of Nees’s syntype series. However, we do believe that they correspond to Nees’s concept of the species and they fully match his description. Based on this, we here designate specimen NHMW-HYM #0005320 (top left) as the neotype of Pl. grandis .