青海血厉螨属一新种(蜱螨亚纲,厉螨科)

A NEW SPECIES OF THE GENUS HAEMOLAELAPS FROM QINGHAI PROVINCE(ACARI, LAELAPIDAE)

记述厉螨科Laelapidae血厉螨属HaemolaelapsBerlese,1910一新种,长棒血厉螨,Haemolaelapslongirodussp.nov.。标本采自青海省黄南州同仁县红耳鼠兔体上,保存于青海省地方病预防控制所。文内测量单位均为μm。

This paper reports a new species of the genus Haemolaelaps Berlese, 1910 from Qinghai Province. Haemolaelaps longirodus sp. nov. （Figs. 1-4） The new species is similar to Haemolaelaps anomalis Wang, Liao et Lin, 1981, but differs from the latter in the following diagnostic characters： 1） the dorsal plate has 2 accessory setae. Movable digit has 2 teeth; 2） posterior margin of sternal plate has two small peaks, the narrowest width of sternal plate is 130.6 μm; 3） the widest width posterior part of genitoventral plate is 140.8μm, obviously larger than anal plate （115.2）; 4） anal plate is pear-like, the length larger than widtl＇/, Ad 〉 PA; 5 ） metapodal plate 6 pairs, the largest one long rod-like, 64 μmin length. The different features of Haemolaelaps anomalis are： 1） the dorsal plate has no accessory setae, movable digit has 3 teeth; 2） posterior margin of strenal plate has no peaks and has irregular concave, the narrowest width of sternal plate is 150 μm; 3） the width of posterior part of genitoventral plate is almost equal the anal plate; 4） anal plate is triangular, the length equal width, Ad = PA; 5 ） metapodal plate 5 pairs, the largest one kidney-like, 48μm in length. Holotype ♀, collected off Ochotona erythrotis in the Huangnan State on 29 July 2001 by the author and deposited in the Institute for Endemic Disease Preventipn and control of Qinghai Province.