枝厉螨属(胭螨科)和黑面螨属(黑面螨科)各一新种(蜱螨亚纲,中气门亚目)

NEW SPECIES OF THE GENERA DENDROLAELAPS (RHODACARIDAE) AND CELAENOPSIS(CELAENOPSIDAE)(ACARI,MESOSTIGMATA)

记述革螨股Gamasina 1新种 :神农架枝厉螨DendrolaelapsshennongjiaensisMaetLiu,sp .nov .,和角螨股Antennophorina 1新种 :新疆黑面螨CelaenopsisxinjiangensisMaetYe,sp .nov .。

This paper describes a new species of Gamasina and a new species of Antennophorina.The latter is the first record of Antennophorina in China.Dendrolaelaps shennongjiaensis Ma et Liu,sp. nov.(Figs.1-4) ♀.Idiosoma 455?μm long and 236?μm wide.Both dorsal shields bear 16 pairs of simple setae respectively,anterior dorsal shield with two pairs of chitinous pore-like structures,posterior dorsal shield with medially incised anterior margin.Sternal shield with 4 pairs of setae.Genital shield with lateral concavities before Vl-1,posterior part expanded,round.Ventro-anal shield rectangular,lateral margins not even,preanal setae 2 pairs,Ad situated before level of middle of anus,slightly longer than PA.Metapodal shields narrow,wedge-shaped.Leg Ⅲ with spiral sclerous tubule in femur.;Male unknown.;The new species is near to Dendrolaelaps baixuelii Ma,1997,but differs from the latter in females′ St-3 near lateral margins of sternal shield,genital shield with lateral concavities before Vl-1,lateral margins of ventro-anal shield not even, sclerous tubule in leg Ⅲ reaching middle of the femur(in the latter species St-3 distant from lateral margins of sternal shield,genital shield without lateral concavities,lateral margins of ventro-anal shield even,sclerous tubule in leg Ⅲ reaching to end of the femur);Holotype ♀,collected from Chiroptera in Shennongjia (31°15′N,109°56′E,about 400?m),Hubei Province,16 Aug.1999.Deposited in the Institute of Parasitic Diseases,Hubei Academy of medical Science,Wuhan.Celaenopsis xinjiangensis Ma et Ye, sp. nov. (Figs.5-9) ♀.Body brown,oval,896?μm long and 655?μm wide.Dorsal shield extends to venter,bearing many thin setae and pores.Sternal shield with slightly concave posterior margin and long post-lateral angles,St-1 situated at anterior margin,St-2 and St-3 arranged along posterior margin,the first pair of pores distinct.Both metasternal shields large and closely linked,MSt near to antero-lateral angle of the shields.Genital,Ventral,anal,exopodal and peritrematal shields fused together,with certain number of thin setae and pores.Ad situated before level of anterior margin of anus,PA lacking.Peritreme reaching level of posterior margin of coxa Ⅱ.There is a W-like structure between the metasternal and genito-ventro-anal shields.Postanal shield rectangular,with a pair of setae.Ventro-lateral shields long and narrow,almost touching genito-ventro-anal shield and extending to dorsal shield,with several setae and pores.Movable digit of chela with a pilose staff-like projection.Corniculus trifurcate.Posterior pair of gnathosomal setae short and pilose,other 3 pairs of gnathosomal setae long and simple.Tarsus Ⅰ without claw and pulvillus.;Male unknown. The new species differs from Celaenopsis badius C.L.Koch,1836 in:sclerosis structure in genital region W-shaped,postanal shield rectangular(in the latter sclerosis structure in genital region V-shaped,postanal shield strip-like).;Holotype ♀,collected off Cricetulus migratorius(Pallas)from Hejing County(42°15′N,86°26′E),Xinjiang Uygur Autonomous Region,3 July 1990.Deposited in the Xinjiang Institute for Endemic Diseases Control and Research,Urumqi.