On the species taxonomy of the limnotrephine genera limnotrephes, mixotrephes and tiphotrephes (Hemiptera: Helotrephidae)

Abstract

The species of the helotrephid genera Limnotrephes Esaki & China, 1928 and Mixotrephes Papáček, Štys & Tonner, 1989 are revised, and the monotypic genus Tiphotrephes Esaki & China, 1928 is treated for comparison. Limnotrephes contains three species: Limnotrephes campbelli Esaki & China, 1928 (type species) from India (Mysore), L. ceylonensis sp. n. from Sri Lanka, and L. stuckenbergi Poisson, 1950 from Mozambique and Zimbabwe (first record). Mixotrephes contains six species: Mixotrephes hoberlandti Papáček, Štys & Tonner, 1989 (type species) from Iran and Afghanistan, M. kumaonis (Polhemus, 1990) comb. n. (Limnotrephes) from Northwest India and Nepal, M. thermophilus (Papáček & Kovac, 2001) comb. n. (Limnotrephes) from North Thailand, M. nepalensis sp. n. from Nepal, M. bengalensis sp. n. from India (West Bengal), and M. heissi sp. n. from India (West Bengal) and Bhutan.