摘要
记述表刻螨科表刻螨属 2新种 :贺氏表刻螨Epicriushejianguoisp .nov .和黑龙江表刻螨Epicriushei longjiangensissp .nov .;胭螨科囊螨属一新种 :拟巨囊螨Ascasubmajorsp .nov .;寄螨科新革螨属一新种 :囊形新革螨Neogamasusascidiformissp .nov .。模式标本存于全国鼠疫布氏菌病防治基地 ,吉林省白城市。
Four new species of the Mesostigmata are described in the present paper.All type specimens are deposited in the National Base of Plague and Brucellosis Control,Baicheng City,Jilin Province.EpicriidaeEpicrius hejianguoi sp.nov.(Figs.1-8) Female.Length 712-827?μm,width 552-643?μm.Dorsal shield with polygonal network consisting of bi- or trifurcate tuberances.Dorsal setae long and smooth, their ends far exceeding base of next setae.Setae St-1 situated on free jugular shields,St-2,St-3 and MSt on sternal shield.Genito-ventral shield flask-shaped,with two pairs of setae.Anal shield narrow,with a pair of preanal setae and 3 perianal setae.Ventral cuticle setae one pair.Stigmata enclosed in lateral extension of dorsal shield.Tectum with denticulate margin.Chela weakly dentate.Corniculus slender and digitiform.Leg Ⅰ bears long club-liked setae,with small apical globes,one on the tibia and three on the tarsus.;Male.Length 609-781?μm,width 460-575?μm.Dorsum similar to that of the female.Lateral extensions of dorsal shield and anal shield completely fused.Setae St-1 situated on jugular shields.Sterno-genital shield rectangular,bearing 4 pairs of setae and genital orifice in the middle.tectum,chela,corniculus and club-like setae on leg Ⅰ similar to those of the female.;The new species resembles E.stellatus Balogh,1959,but it differs from the latter in:larger body size;longer dorsal setae,their ends far exceeding base of next setae;anal shield narrower.;Holotype ♀,paratypes 1♀ and 5 ♂♂,from forest soil,in Tieli(47°N,128°E),Heilongjiang Province,July 1994.;The new species is named in honour of Prof.HE Jian-Guo,the famous plague specialist in China.Epicrius heilongjiangensis sp.nov.(Figs.9-16) Female.Length 609-632?μm,width 425-460?μm.Dorsal shield with polygonal network consisting of bi-or trifurcate tuberances.Dorsal setae finely pilose,their ends projecting distinctly beyond base of next setae.Jugular shields one pair.Setae St-1 placed on jugular shields,St-2,St-3 and MSt on sternal shield.Genito-ventral shield bearing two pairs of setae.Anal shield broader,with 3 pilose perianal setae.One pair of small platelets near lateral extensions of dorsal shield.Ventral cuticle setae two pairs.Tectum with a delicate denticulate edge.Chela weakly dentate.Corniculus slender.Tibia Ⅰ bears a long club-liked seta with small apical globe,tarsus Ⅰ bearing 3 such club-like setae.;Male.Length 575-632?μm,width 402-425?μm.Dorsum similar to that of the female.Lateral extensions of dorsal shield and anal shield not fused.Sterno-genital shield rectangular,bearing 4 pairs of setae,but St-1 on jugular shields.Ventral cuticle setae 3 pairs.Tectum,chela,corniculus and club-like setae of leg Ⅰ similar to those of the female.;The new species is similar to E.nemorosus Ishikawa,1969,but it differs from the latter in:longer the dorsal setae,their ends projecting distinctly beyond base of next setae;ventral cuticle with platelet near lateral extensions of dorsal shield;tarsus Ⅰ bearing 3 club-like setae with small apical globes.;Holotype ♀,paratypes 1 ♀ and 2 ♂♂,from forest soil,in Tieli(47°N,128°E),Heilongjiang Province,July 1994.RhodacaridaeAsca submajor sp.nov.(Figs.17-22) Female.356?μm long,230?μm wide.Anterior dorsal shield with 17 pairs of simple setae,posterior dorsal shield with 15 pairs of simple setae,D-5 to D-8 short,postero-lateral projection with a small hollow and two setae.sternal shield longer than wide,antero-lateral angles elongated.Genital shield with notches behind Vl-1.Ventro-anal shield transverse oval,anterior margin convex,with 6 pairs of preanal setae and 3 perianal setae.Metapodal shields 2 pairs.Peritreme reaching to F-1.Tectum three-tined.Setae on legs smooth.;Male unknown.;The new species is very close to A.major Womersley,1956,but the new species has dorso-lateral projection with a small hollow,sternal shield with long antero-lateral angles,genital shield with blunt postero-lateral angles;whereas in the latter species the dorso-lateral projection has no hollow,antero-lateralangles of sternal shield short,
出处
《动物分类学报》
CSCD
北大核心
2003年第1期66-72,共7页
Acta Zootaxonomica Sinica
