革索螨属一新种（蜱螨亚纲：寄螨科）

A NEW SPECIES OF THE GENUS GAMASODES FROM CHINA (ACARI: PARASITIDAE)

本文记述采自青海达日县的革索螨属一新种──果洛革索螨Ｇａｍａｓｏｄｅｓｇｕｏｌｕｏｅｎｓｉｓｓｐ．ｎｏｖ．新种与Ｇ．ｃｏｒｎｉｃｕｌａｎｓＡｔｈｉａｓ－Ｈｅｎｒｉｏｔ，１９７８较相近，但头盖形状不同；足Ⅱ表皮距细长指状，端部光滑圆钝；背毛Ｆ２、ＥＴ１不分支，并多１—２对后背毛。

Gamasodes guoluoensis sp. nov. (figs. 1-8)Holotype deutonymph collected in a cave of rat, Aug. 26, 1986, paratype 1 deutonymph collected in a nest of bird, Aug. 30, 1986, from Dart County, Guoluo Zang Autonomous State, Qinghai Province (33°46'N, 99°37'E), deposited in the Department of Parasitology, Medical School, Naming University.The new species differs from its closely related ally Gamasodes comiculans AthiasHenriot, 1978 in the following respects: 1 ) the central prong of tectum narrow and pointed, each side with only 4 teeth, while the central prong of the latter species with expanded base and with 7-8 teeth on each side, some of them bifurcated ; 2) spurs on leg Ⅱ thumb-like or finger-like, with smooth and round end, while those of the latter species shorter and stouter, with rough and pointed tip ; 3) the new species bearing 1-2more pairs of opisthonotal setae, and F2, ET1 without branches.