摘要
在云南陇川县的蟋蟀Gryllus sp.体上采得一种革螨,系厉螨科Ltelapidae Berlese中未曾描述过的种类,并为之建立新属,订名为滇厉螨属Dianolaelaps gen.nov.,属模标本为蟋蟀滇厉螨Dianolaelaps gryllus sp.nov.。新属的主要鉴别特征是:雌螨螯钳动趾端部分三叉;颚角内侧有沟漕并具齿突;口下片末端,在颚角与下咽间有长圆形结构,其内缘并具透明的尖齿列;涎针有膜状结构包绕;足Ⅰ—Ⅲ基节各具一棘,各基节远端侧具细小毛列。
In this paper a new genus and new species of Laelapidae Berlese is described and figured. The type specimen is kept in the Department of Parasitology, Guiyang Medical College.Dianolaelaps gen. nov.Generic diagnosis: Laelapidae. Large mites. Dorsal plate bearing 39 pairs of long setae. Female digitus mobilis of chela divided into 3 digits and with a tuft of setae at its base. Corniculi well developed, a groove on its inner side and with 3 prongs on it. Between the corniculi and hypopharynx, a specific structure at the anterior margin of hypostome, oval in-shape and with a row of transparent teeth on its inner side. Salivary stylet rounded by a membranous structure. Genito-ventral plate bearing 4 pairs of setae. Coxae of legs Ⅰ to Ⅲ with one spur each, and on the distal margin of all coxae with linning small setae.Type species: Dianolaelaps gryllus sp. nov.Dianolaelaps gryllus sp. nov.Female (figs. 1-9): Idiosoma oval, 987.5 μm in length and 822.9 μm in width. Dorsal plate 954.6 μm long and 789.9 μm wide, bearing 39 setal pairs of setae, except F1, all setae long and slender. Corniculi long, with a groove on its inner side and bearing 3 prongs on it. Epipharynx expanded in distal portion, 139.9 μm long and 45.3 μm wide, with a central groove 6.17 μm in width and reaching the tip end. Between the corniculi and hypopharynx, a specific structure on the anterior margin of hypostome, oval in shape and with a row of transparent teeth at its tip and on inner side. Salivary stylet 74.1 μm long, rounded by a membranous, structure with wavy margin. Tectum membranous, cap-like. Digitus mobilis of chela divided into 3 digits, the tip of middle digit curved, and with a tuft of setae at its base. Sternal plate bearing 3 setal pairs of setae and two pairs of lyriform pores. Genitoventral plate long and large, the posterior margin concave, closely along the anterior margin of anal plate, and bearing 4 setal pairs of setae. Anal plate pear-like, Ad on the posterior level of anus, 86.4 μm long, PA heavier, measuring 160.5μm. Metapodal plate oval. Peritreme ending in posterior portion of coxa I; peritremal plate reaching anterior portion of coxa I, and its posterior end rounded, with 2 small pores. Femur 1 bearing one pair of long setae. Coxae of legs Ⅰ to Ⅲ with one spur each, and on the distal margin of all 4 coxae with linned small setae. Tarsi of legs Ⅱ,Ⅲ and Ⅳ, hearing 2, 3 and 1 spines respectively, and several stouter setae.Holotype ♀ was collected off a cricket, Gryllus sp., on June 24, 1987, from Longchuan County (24.3°N, 97.9°E), Yunnan Province, by Duan Qi-xiang.
出处
《动物分类学报》
CSCD
1990年第4期436-440,共5页
Acta Zootaxonomica Sinica
基金
贵州科学院科学基金
关键词
蜱螨亚纲
厉螨科
新属
新种
Acari Gamasina Laelapidae Dianolaelaps gen nov. Dianolaelaps .gryllus sp. nov.
