革索螨属在我国首次发现及一新种记述(蜱螨亚纲:寄螨科)

THE FIRST RECORD OF GAMASODES IN CHINA WITH DESCRIPTION OF A NEW SPECIES (ACARI: PARASITIDAE)

革索螨属Gamasodes系Oudemans于1939年建立,迄今属中共有8种。我国尚未有过本属纪录。本文绘图描述了新种中华革索螨Gamasodes sinicus sp.nov.,模式标本采自山西五台山的山麻雀Passer montanus(Linnaeus)窠中,存放在贵阳医学院。

The present paper reports the first record of Gamasodes in China, and describes a new species of this genus.Gamasodes sinicus sp. nov. (figs. 1-7):Holotype deutonymph collected in June, 1978, by Tian Qing-yun, from a nest of Passer montanus (Linne), in Mt. Wutai (39.1°N, 113.6°E), Shanxi Province, deposited in the Department of Parasitology, Guiyang Medical College.The new species closely resembles Gamasodes bispinosus (Halbert, 1915), but with following differences: 1) the new species with larger podonotal plate and bearing one more setal pair on the plate; 2) the new species with 24 setal pairs on the bared dorsum, while in the latter species with only 10 setal pairs; 3) the rectum of the new species with only one prong, that of the latter species with two more lateral prongs; 4) the new species with one more pair of jugular plates and one more setal pair on the bared venter.