Two new brachypterous species of Heterospilus Haliday (Hymenoptera, Braconidae, Doryctinae) from the Nearctic region

Two new species, Heterospilus belokobylskiji Kula, sp. n. and Heterospilus vincenti Kula, sp. n., from the Nearctic Region are described and differentiated from all other New World species of Doryctinae that exhibit brachyptery or aptery. T hey are the first brachypterous species of Heterospilus Haliday known in the New World and increase the total number of brachypterous species in the genus to four worldwide.