中国东洋区摇蚊科二新种（双翅目：摇蚊科）

本文记述采自广东封开黑石顶自然保护区的摇蚊科二新种。叉毛津田摇蚊Ｔｓｕｄａｙｕｓｕｒｉｋａｃｌａｄｏｃｈａｉｔａｓｐ．ｎｏｖ．新种。雄触角着生分叉的透明感觉毛，生殖节上、下附器均高度退化，与本属已知的唯一种类──产自台湾、日本的Ｔ．ｍｕｌｔｉａｎｎｕｌａｔａ（Ｔｏｋｕｎａｇａ）差异明显。毛尾长跗摇蚊Ｔａｎｙｔａｒｓｕｓｔｒｉｃｈｏｐｒｏｃｔｏｓｓｐ．ｎｏｖ，新种。雄外生殖器肛尖密被细毛，Ｃ脉终点位置与本属已知种显著不同。

TWO NEW AND UNUSUAL SPECIES FROM ORIENTAL CHINA(DIPTERA :CHIRONOMIDAE)

Tsudayusurika cladochaita sp. n. of Orthocladiinae and Tanytarsus trichoproctos sp. n. of Tanytarsini,Chironominae from Guangdong in Oriental China are described and illustrated as male imagines.Tsudayusurika cladochaita sp. n. is unique in its combination of the presence of branched sensilla chaetica on the antennal flagellomeres, strongly reduced inferior volsella, short and subequal palp segment, wing membrane with coarse punctation and costa with conspicuous extension.Tanytarsus trichoproctos. sp. n. is separable from all other known species of the genus by having a parallel-sided anal point with rounded apex , covered with dense microtrichiae and several long setae.