摘要
记述胭螨科枝厉螨属二新种:拟跗枝厉螨Dendrolaelapsimitopraetarsalissp .nov .和嵩山枝厉螨Dendrolae lapssongshanensissp .nov .。
Two new species of the genus Dendrolaelaps are described in the present paper.All type specimens are deposited in the Institute of Plant Protection,Fujian Academy of Agricultural Science,Fuzhou,China.1 Dendrolaelaps imitopraetarsalis sp.nov.(Figs.1-11) ♀.Length 540-552(av.546)μm,width 368-379 (av.373)μm.Idiosoma straight posteriorly.Dorsum covered by two shields.Anterior dorsal shield bearing 22 pairs of simple setae,M 2 the longest,F 2 the shortest.Two pairs of chitinous pore-like structures arc-shaped.Anterior margin of poste- rior dorsal shield without incision,with 19 pairs of simple setae,3 pairs of which situated on the venter of the carved parts,M 10 the longest,S 8 the shortest.Sternal shield with concave posterior margin,sternal setae 4 pairs,pores 3 pairs.Genital shield expanded behind Ⅵ 1.Ventro-anal shield rectangular,anterior margin concave medially,preanal setae 3 pairs.Ad situated at middle level of anus,longer than anus,PA shorter than Ad.Ventral cuticle with 4 pairs of setae,of which Ⅵ 2 near anterior margin of ventro-anal shield.Metapodal shields T-shaped.Anterior end of peritreme reaching to posterior margin of coxa Ⅰ.Lateral prongs of tectum entire.Leg Ⅲ with short and broad sclerous tubule in femur. ♂.Length 471-494 (av.483)μm,width 345-356 (av.350)μm.Dorsum similar to that of female.Sterno-genital shield bearing 4 pairs of sternal setae and 3 pairs of pores.A pair of setae situated on triangular endopodal shields.Ventro-anal shield with 10 pairs of ventral setae and 3 perianal setae.Spermatodactyl longer than movable digit of chela.Leg Ⅱ with long digit-like spur on femur,short triangular spur on genu,and small spurs on tibia and tarsus. The new species is very similar to D.praetarsalis Wisniewski et Hirschmann,1985,but in the new species all dorsal setae sharp,M 2 long and thin,posterior corners of genital shield short,anterior margin of ventro-anal shield concave,Ⅴ 2 on cuticle before the shield,lateral prongs of tectum entire;in the latter species p
出处
《动物分类学报》
CSCD
北大核心
2005年第2期350-354,共5页
Acta Zootaxonomica Sinica
