背刻螨属一新种及洮儿河美绥螨雄螨、后若螨描述(蜱螨亚纲:革螨股:美绥螨科)  

Descriptions on A New Species of the Genus Epicriopsis and Male and Deutonymph of Ameroseius taoerhensis Ma, 1995 (Acari: Gamasina: Ameroseiidae)

作　　者：马立名 

机构地区：[1]全国鼠疫布氏菌病防治基地,吉林白城137000

出　　处：《Entomotaxonomia》2002年第4期308-312,共5页昆虫分类学报（英文）

摘　　要：报道背刻螨属在中国的发现。并描述1新种:吉林背刻螨Epicriopsisjilinensis,sp.nov.。同时描述洮儿河美绥螨AmeroseiustaoerhensisMa,1995雄螨及后若螨。模式标本存于吉林省白城市全国鼠疫布氏菌病防治基地。Epicriopsis Jilinensis, sp. nov. (Figs. 1～5) ♀. Idiosoma 391×310 μm. Dorsal shield ornamented with star like protuberances, bearing 24 pairs of simple setae, 7 pairs of which very long and stout. Length of setae: F 1 46, D 1 34, D 2 57, D 3 34, D 4 52, D 5 230, D 7 264, M 11 184 μm, D 7 shorter than idiosoma. St 1 and St 2 situated on sternal shield, St 3 and MSt on cuticle. Genito ventral shield with one pair of setae. Anal shield subcircular, anus large, Ad lying behind level of middle of anus and slightly shorter than anus. Tectum with a slender anterior prong. Chela short. Leg Ⅰ 483 μm long, tarsus Ⅰ subequal to twice length of tibia Ⅰ. The new species is near to Epicriopsis suedus Karg, 1971, but in the new species tectum with a slender anterior prong, tarsus Ⅰ subequal to twice length of bibia Ⅰ; in the latter species anterior margin of tectum arc shaped, tarsus Ⅰ subequal to three times length of tibia Ⅰ. Holotype ♀, paratype 1♀, from forest soil, in Dunhua County (43°21′N, 128°13′E), Jilin Province, Ⅷ 1990. Type specimens are deposited in the National Base of Plague and Brucellosis Control, Baicheng City, Jilin Province. 2. Ameroseius taoerhensis Ma, 1995 (Figs. 6～11) ♂. Idiosoma 333×230 μm. Dorsal shield reticulated, bearing 29 pairs of long pilose and short simple setae. Sterno genital shield with 5 pairs of setae. Ventro anal shield with 3 pairs of preanal setae and 3 perianal setae. Ventral cuticle setae 2 pairs, of which a pair of short simple setae inserted between sterno genital and ventro anal shields, another pair of long pilose setae situated postero lateral to ventro anal shield. Tectum triangular. Spermatodactyl of chela club shaped. Specimens 2♀♀, 1♂ and 1 deutonymph, under decomposed bark of pine, from Linjiang County (41°50′N, 126°51′E), Jilin Province, 10 Ⅷ 1999.

关 键 词：背刻螨属 新种 洮儿河美绥螨 雄螨 后若螨 蜱螨亚纲 革螨股 美绥螨科 

分 类 号：Q969.91[生物学—昆虫学]