Two new species of mermithid nematodes were collected from the infected larvae of Agrotis ipsilon in Taihu County 30°8'N 116°17'E, latitude, Anhui Province in 1986. They are identified as two new species of the genus Hexamermis, Hexamermis taihuensis sp. nov. and Hexamermis heterocephalis sp. nov., It has been found that they could control the black cutworm in Shuangqiao village.Hexamermis taihuensis sp. nov. (figs. 1-7)Adults:Body small, cuticle with obvious crisscross fibers; head attenuated, six cephalic papillae arranged in one plane, on ...
