Author Institution: Department of Zoology and Entomology, The Ohio State University, Columbus, Ohio 43210A key is presented to identify the 17 species represented by males. Nineteen species are treated, nine of which, previously described, are: H. annulicornis (V.D.), lacteipennis (Fowl), incita DeL., herbida DeL., manifesto, DeL., gelbata DeL., transversa DeL., virescens DeL., and dictatoria (Gib.). The following ten species are described as new: H. loka, serrella, valeka, kolva, nemella, kella, nelya, lekva, hyena, and helva. One hundred and two figures are used to illustrate the diagnostic characters of the several species
