新革螨属一新种(蜱螨亚纲:寄螨科)

A NEW SPECIES OF THE GENUS NEOGAMASUS (ACARI:PARASITIDAE)

记述新革螨属一新种:陀螺新革螨Neogamasusturbinatussp.nov.

A new species, Neogamasus turbinatus sp.nov., is described and illustrated from Heilongjiang Province, China. Neogamasus turbinatus sp.nov.(Figs. 1～10) Female. Body yellow, oval, 575 μm long, 368 μm wide. Dorsal setae long and smooth but F 2, ET 1, ET 2 and M 3 minute, with 21 pairs on anterior dorsal shield, about 32 pairs on posterior dorsal shield. Presternal shields 3 pairs. Endogynium top shaped shown as in fig. 3. Ventral shield broad, with 9 pairs of setae except perianal setae. Ad situated at level of posterior margin of anus, both Ad and PA subequal to anus in length. Peritreme reaching between coxae I and II. Tectum with 3 tines. Setae al of palpfemur and al 1 and al 2 of palpgenu branchy. The new species near to Neogamasus diviortus (Athias Henriot, 1967),but the new species both al 1 and al 2 of palpgenu branchy, presternal shields 3 pairs, endogynium of female top shaped; however,the latter species al 1 and al 2 entire, presternal shields 1 pair, endogynium oval. Holotype ♀, paratypes 1 ♀ and 2 deutonymphs, from forest soils, in Liangshui Natural Preserve(47°10′N, 128°53′E,350～450 m). Yichun City, Heilongjiang Province, Aug. to Oct. 1995. Type specimens are deposited in the National Base of Plague and Brucellosis Control, Baicheng City, Jilin Province.