Culicoides 属ヌカカにおける二種の性的異常型

抄録

Intersexes of the following three Japanese Culicoides species, the head and wing showed characteristic of the female, and its genitalia were morphologically male. In C. jacobsoni and a gravid C. sinanoensis possessed the heads similar to of the female, but the antennae showed intermediate characters between male and female and the imperfectly developed genitalia were the male ones. Three developed spermathecae were observed in female of C. aterinervis, C. oxystoma, C. sanguisuga, C. verbosus and Malaysian C. pampanqensis, which normally had tow sperma-thecae.