中国吻额蛛属一新种(蜘蛛目:皿蛛科:微蛛亚科)

A NEW SPECIES OF SPIDER OF THE GENUS APRIFRON- TALIA FROM CHINA (ARANEAE: LINYPHIIDAE: ERIGONINAE)

本文描述了作者1986年采自湖北省神农架林区的吻额蛛属Aprifrontalia一新种:膨大吻额蛛,新种Aprifrontalia afflata sp.nov.。目前,除本新种外,世界仅报道过1种:Aprifrontalia mascula,本新种雄蛛最显著的特征是:其额向前突呈吻状,触肢胫节前端甚膨大。外雌器形成一斜向下方的突起。模式标本保存于白求恩医科大学生物教研室。

In the present paper a new species of the genus Afrifromalia is described. All types are deposited in the Department of Biology, Norman Bethune University of Medical Sciences.Aprifrontalio afflata sp. nov. (figs. 1-10)Holotype ♂, allotype ♀, paratypes 4♂♂ 4♀♀ collected from Shennongjia (31°15’-31°7’N, 109°56’-110°58’E), Hubei Province, June-August, 1986.Body lenth ♂ ca. 4.55mm, ♀ ca. 4.50mm.♂ Tibiae Ⅰ-Ⅱ with 2 dorsal spines, tibiae Ⅲ-Ⅳ each with 1 dorsal spine, metatarsus Ⅳ with trichobothria, Tm Ⅰ 0.86. Head projecting forward as a snout. Chelicera with 5 promarginal teeth. Tibia short and strongly widened distally. Tibia with two apophyses: a dorsal apophysis and an inner one. Paracymbium long, with several long bristles on it.Carapace without a projection in front. Tm Ⅰ 0.85.epigyne with a prominence.The new species is similar to A. mascula, but may be distinguished from the latter by the following aspects: 1, the male palpal tibia without a triangular outer apophysis; 2. Tm Ⅰ 0.85 (♀)-0.86(♂); 3. shape of epigymum different; 4. with markings on its abdomen from above; 5. the male head snout weaker.