中国西北地区盲走螨属二新种和一新纪录种(蜱螨亚纲:植绥螨科)

TWO NEW SPECIES AND ONE NEW RECORD OF THE GENUS TYPHLODROMUS FROM NORTHWEST CHINA (ACARI: PHYTOSEIIDAE)

本文记述了西北地区采到的植绥螨科盲走螨属二个新种:金露梅盲走螨Typhlodromus dari phorae sp.nov.和毛榛盲走螨Typhlodromus coryli sp.nov.,描述了它们的形态特征,并与近似种作了比较。此外记述了一个新纪录种,塔氏盲走螨Typhlodromus talbii Athai-s—Henriot。

Typhlodromus dasiphorae sp. nov. (figs. 1-4)This species is similar to Typhlodromus algonquiensis Chant, Hansell ct Yoshida, 1971, but it differs from the latter in the dense reticulation on the dorsal shield, in the serrate posterior margin of the sternal shield, in the ventrianal shield without preanal pore and the leg IV without macrosetae.Holotype ♀, paratypes 2♀♀, 1986. Ⅶ. 26,Hezuozhen, Gansu Province (34.9°N, 102.9°E), collected by Lan Wen-ming, on Dasiophra fruticosa.Typhlodromus eoryli sp. nov. (figs. 5-8)This species is similar to Typhlodromus psyllakisi Swirski et Ragusa, 1976; Typhlodromus commenlicius Livschitz et Kuznetzov, 1971; and Typhlodromus Iranqullus Livschitz et Kuznetzov, 1971, but it differs from these species in the leg Ⅳ without macrosetae; in the shape of spermatheca, of which the cervix is U-shaped.Holotype ♀, paratypes 18♀♀, 1987. Ⅷ. 6, Mt. Liupan (1900m), Ningxia (35.8°N, 106.5°E), on Corylus mandshurica: 1♀, 1986. Ⅶ. 6, Mt, Maiji (1600m), Gansu Province (34.1°N, 106°E), collected by Lan Wen-ming; ♀, 1984. Ⅶ. 30, Mt. Qian, Liaoning Province (41.5°N, 123.8°E), by Wu Wei-nan.Typhlodromus talbii Athias-Henriot, 1960New record from China. Distribution: Gansu Province. Habitat plant: Populus lasiacarpa.