摘要
记述巨刺螨属1新种:泾源巨刺螨Macronyssus jingyuanensis sp.nov.标本采自宁夏回族自治区泾源县西峡区伏翼Pipistrellus sp.体,保存于军事医学科学院微生物流行病研究所昆虫标本馆。
A new species of the genus Macronyssus is described in the present paper.Macronyssus jingyuanensis sp. nov.（Figs.1-10） Female. Length of idiosoma 667-806 （av. 729）μm,width 409-505 （av. 468）μm at level of coxae Ⅳ. Dorsal shield 570-591 （av. 588）μm long and 247-269 （av. 265）μm wide, bearing 28 pairs of setae, of which central setae minute. Length of dorsal shield setae： F_1 21, F_3 56, V 45, T_1 53, Sc 53, ET_1 34, ET_2 38, S_1 49, S_2 49, S_3 41, S_4 34, S_5 26, S_6 11, S_7 26, S_8 6, M_5 41, M_8 26, M_10 26, M_11 26, D_1-8 11, I_1 19. Sc∶D_3=5∶1. Dorsal cuticle setae more than 40 pairs. Posterior concavity of sternal shield distant from level of St_2, with 3 pairs of setae and 2 pairs of pores, St_1 and St_2 longer than St_3 and MSt, St_1 near to posterior margin of sternal shield distally, MSt on cuticle behind of the shield. Presternal reticulation region distinct. Genital shield long and narrow, reticulated, with 1 pair of setae. Anal shield inverse pear-shaped, Ad lying at level of middle of anus, shorter than anus, PA longer than anus. Peritreme reaching to anterior part of coxa Ⅰ anteriorly. Ventral cuticle setae more than 50 pairs. Fixed digit of chela with 2 spines. Coxae Ⅱ with an antero-dorsal spine respectively. Male. Length of idiosoma 538-602 （av. 570）μm,width 333-398 （av. 366）μm. Dorsal shield 505-538 （av. 521）μm long and 215μm wide, dorsal shield setae as in female. Length of dorsal shield setae： F_1 19, F_3 38, V 26, T_1 38, Sc 38, ET_1 23, ET_2 26, S_1 30, S_2 30, S_3 26, S_4 23, S_5 19, S_6 11, S_7 19, S_8 6, M_5 26, M_8 19, M_10 19, M_11 23, D_1-8 11, Ⅰ_1 15. Sc∶D_3=3∶1. Dorsal cuticle setae about 14 pairs. Sterno-genital shield with 5 pairs of setae and 3 pairs of pores. Ventro-anal shield with 4 pairs of ventral setae and 3 perianal setae. Perianal setae as in female. Ventral cuticle setae 24-38 pairs. Peritreme reaching to anterior part of coxa Ⅱ anteriorly.Spermatodactyl of chela narrow. Antero-dorsal spine of coxae Ⅱ as in female. The new species is similar to M. angustus Allred, 1969, M. crosbyi （Ewing et Stover, 1915）, M. flavus （Kolenati, 1856）, M. kolenatii （Oudemans, 1902）, M. unidens Radovsky, 1967, M. yesoensis Uchikawa, 1979 and M. heteromorphus Dusbabek et Radovsky, 1972. But it differs from M. angustus in the dorsal shield broader posteriorly, M_11 distant from lateral margins of the shield; dorso-central setae minute, the tip far distant from base of next seta. In M. angustus, the dorsal shield narrower posteriorly, M_11 near to lateral margins of the shield; dorso-central setae long, the tip reaching or near to base of next seta）. Differences from M. crosbyi： in the new species, genito-ventral shield with 1 pair of setae, while genito-ventral shield with 5 setae in M. crosbyi. Differences from M. flavus： posterior end of dorsal shield narrower, dorso-central setae minute;anal shield narrower, pear-shaped in the new species. In M. flavus, posterior end of dorsal shield broader, dorso-central setae longer;anal shield broader anteriorly, triangular. Differences from M. kolenatii： in the new species, dorso-central setae minute, anal shield pear-shaped; while in M. kolenatii, dorso-central setae longer, anal shield triangular. Differences from M. unidens： in the new species, dorso-central setae minute; St_3 shorter than St_1 and St_2, genito-ventral shield with 1 pair of setae. Dorso-central setae longer, St_3 subequal to St_1 and St_2 in length, genito-ventral shield with 3 setae in M. unidens. Differences from M. yesoensis： dorso-central setae minute, genito-ventral shield with 1 pair of setae, anal shield pear-shaped in the new species; while in M. yesoensis, dorso-central setae longer, genito-ventral shield with 3 setae, anal shield triangular. Differences from M. heteromorphus： in the new species, anal shield of female narrow, pear-shaped; posterior idiosomal setae of male normal. In M. heteromorphus, anal shield of female broader, pentagonal; posterior idiosomal setae of male very long and stout. Holotype ♀, paratypes： 9♀♀, 2♂♂, off Pipistrellus sp., from Jingyuan County （35°31′N, 106°24′E）, Ningxia Hui Autonomous Region, 21 July 2007. Type specimens are deposited in the Insect Collection Room, Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing. Etymology. The new species is named after the locality of type specimens.
出处
《动物分类学报》
CSCD
北大核心
2010年第1期179-182,共4页
Acta Zootaxonomica Sinica
