摘要
记述枝厉螨属 1新种 :小虫枝厉螨 Dendrolaelapsvermicularis,sp.nov.。
Dendrolaelaps vermicularis, sp. nov. (Figs.1～10) Adult. Measure of idiosoma, ♀ 368×218 μm, ♂ 316×184 μm. In female, anterior dorsal shield with two pairs of semilunar structures and 21 pairs of simple setae, posterior dorsal shield with 19 pairs of simple setae, marginal setae of which rolling to venter along with margins of the shield. Anterior margin of sternal shield indistinct, sternal setae 4 pairs, St 2, St 3 and MSt arrange in a line. Lateral posterior angles of genital shield projected, genital setae situated on lateral margins of the shield. Ventro anal shield rectangular, with 4 pairs of preanal setae and 3 perianal setae; Ad situated before level of middle of anus, longer than PA. Metapodal shield narrow. In male, dorsal setae 20 pairs on anterior dorsal shield and 15 pairs on posterior dorsal shield. Sterno genital shield with 5 pairs of setae. Ventro anal shield join to posterior dorsal shield, with a rhomboid anterior projection, preanal setae 11 pairs. In both sexes, peritreme reaching between coxae Ⅱ and Ⅲ; tectum with 3 prongs. Chela of female short. Spermatodactyl of male thin and long. Sclerosis tubule in femur Ⅲ of female vermiform. Leg Ⅱ of male with a finger like spur on femur and a small circular projection on genu, tibia and tarsus respectively. The new species near to Dendrolaelaps xylophilus Wisniewski et Hirschmann, 1993, but in the new species dorsal setae long, anterior margin of posterior dorsal shield without sinus, St 3 of female situated on line connecting St 2 and MSt, preanal setae 4 pairs; dorsal setae of the latter short, posterior dorsal shield with sinus at middle of anterior margin, St 3 situated interior to line connecting St 2 and MSt, preanal setae 3 pairs. Holotype ♀, Paratypes 1♀ and 1♂, from forest soil, in Dunhua County (43°21′N, 128°13′E), Jilin Province, Aug. 1990. Type specimens are deposited in the National Base of Plague and Brucellosis Control, Baicheng City, Jilin Province. I thank Profs. J. Wisniewski and
