中国纤蚤属一新种记述(蚤目:多毛蚤科)

ON A NEW SPECIES OF RHADINOPSYLLA FROM GANSU PROVINCE, CHINA (SIPHONAPTERA: HYSTRICHOPSYLLIDAE)

本文报告了甘肃省纤蚤属Rhadinopsylla似小纤蚤亚属Micropsylloides一新种:扁鬃纤蚤R.(M.)flatterispina sp.nov。新种第8腹板上着生4根长而粗且端段变扁的刺形鬃,易与近似种吻长纤蚤(R.(M.)jaonis,1929)相鉴别。

Rhadinopsylla (Micropsylloides) flattispina sp. nov. (figs. 1-4)Diagnosis: Only male known. The new species should be included in the subgenus Micro-psylloides Ewing, 1938 and allied to R (M.) jaonis Jordan, 1929, but could be distinguished from the latter by following characters: 1) subapical margin of st. Ⅷ bearing 4 long and stout spiniform bristles of which apical portion strongly flattened (so the new species is named); 2) fixed process of claspar conical and slightly higher than movable process; 3) distal arm of st. Ⅸ S-shaped; 4) dorsal margin of sensilium pikeshaped; 5) the longest apical bristle of segment Ⅱ of hind tarsus reaching beyond the tip of segment Ⅴ.Types: Holotype ♂, paratype 1♂, all taken off Cricetulus kamensis from Aksay Kazakzu Zizhixian (39.4°N, 94.2°E) 2600-2800m, Gansu Province. The holotype and the paratype are deposited in the first and second author's collection respectively.