Three new species of genus Cenocorixa (Hemiptera: Heteroptera: Corixidae: Corixinae) from China

摘要

The genus Cenocorixa is recorded for the first time in China. Three new species Cenocorixa bui, Cenocorixa crestiforma, and Cenocorixa montana from China are described and illustrated. Some characters are illustrated by drawings and scanning electronmicrographs. The genus Cenocorixa was erected by Hungerford in 1948, and was comprised of eight species; it was only known from the Nearctic before this study. Usinger (1956) provided a key to California (USA) species based on male characters. Jansson (1972) revised this genus and provided a revised key to males. Stonedahl & Lattin (1986) reported 6 species of this genus from Oregon and Washington states, USA.