マレーシアのサバおよびサラワク州で採集されたブユ属ナンヨウブユ亜属の3新種について Three new species of Simulium (Gomphostilbia) (Diptera: Simuliidae) from Sabah and Sarawak, Malaysia

マレーシアのサバ州で採集されSimulium(Gomphostilbia)dentistylumと同定された蛹および幼虫を再検討し,蛹は類似種のS.(G.)parahiyangum,また幼虫は新種であることが分かった.これらの幼虫およびサラワク州で採集された幼虫標本をもとに新種S.(G.)capillatum sp.nov.を記載した.この結果,S.(G.)dentistylumをサバ州の分布種から除いた.このほか,サラワク州で採集したナンヨウブユ亜属の2新種をS.(G.)auratum sp.nov.およびS.(G.)fulgidum sp.nov.として記載した.

Three new species of Simulium (Gomphostilbia) are described from Malaysia: S. (G.) capillatum sp. nov. from Sabah and Sarawak, S. (G.) auratum sp. nov. and S. (G.) fulgidum sp. nov., both from Sarawak. Simulium (G.) capillatum sp. nov. is distinctive in having a hairy thoracic proleg, a marked constriction between the fourth and fifth abdominal segments, and thoracic and abdominal cuticle covered with various shapes and sizes of dark spinous setae. Simulium (G.) auratum sp. nov. is characterized by the broad inwardly twisted style of the male genitalia, and S. (G.) fulgidum sp. nov. by the pupal gill with eight short and slender filaments all arising together from the base as well as the short cocoon. The distributional record of S. (G.) dentistylum Takaoka and Davies from Sabah is withdrawn.