派盾螨科二新种(蜱螨亚纲:革螨股)

TWO NEW SPECIES OF THE FAMILY PARHOLASPIDAE (ACARI: GAMASINA)

本文记述派盾螨科２新种：副变革板螨Ｇａｍａｓｈｏｌａｓｐｉｓｐａｒａｖａｒｉａｂｉｌｉｓ，ｓｐ．ｎｏｖ．和陈氏讷派螨Ｎｅｐａｒｈｏｌａｓｐｉｓｃｈｅｎｐｅｎｇｉ，ｓｐ．ｎｏｖ．。模式标本存吉林省白城市全国鼠疫布氏菌病防治基地。

Gamasholaspis paravariabilis, sp. nov. (Figs. 1～5) ♀. Body yellow, oval, length average 820 μm, width 555 μm. Dorsal shield length av. 785 μ m and width 498 μm , bearing 29 pairs of simple long setae. Presternal shields well developed, wedge shaped. Sternal shield with 3 pairs of setae and 2 pairs of pores. Metasternal shields free, with a seta and a pore respectively. Genital shield with one pair of setae. Ventro anal shield large, preanal setae 4 pairs; Ad situated at level of anterior margin of anus, longer than anus, PA subequal to Ad in length. Peritreme reaches to coxa I. Corniculi slender. Chela shorter than corniculus. Tarsus II with a stout spine apically. The new species very near to Gamasholaspis variabilis Petrova, 1967, but different from the latter in: female without metapodal shield, Ad situated at level of anterior margin of anus; the latter species with metapodal shield, Ad situated before level of anterior margin of anus. Holotype ♀, paratypes 2 ♀♀, from forest soils, in Liangshui Natural preserve (47°10′N, 128°53′E), Yichun City, Heilongjiang Province, Aug. and Oct. 1995. 2. Neparholaspis chenpengi, sp. nov. (Figs. 6～ 11) ♀. Length of body 885 μm, width 575 μm. Dorsal shield covers all dorsum, provided with about 29 pairs of simple long setae. Presternal shields well developed, wedge shaped. Sternal shield bears 3 pairs of setae and 2 pairs of pores. Metasternal shields with a pair of setae and pores. Genital shield nearly rectangular, with a pair of setae. Posterior half of ventro anal shield strongly contract, antero lateral part fused with peritrematal shields, without crack between them, expulsory vesicles near to posterior angles of genital shield, preanal setae 4 pairs, Ad located at level of anterior margin of anus. Metapodal shields one pair, narrow and elongate. Peritreme reaches to anterior margin of coxa I. Tectum long and narrow, with many denticles at the margins. Corniculi slender and longer than chela. Tarsus II with a stout spine apically. The new species near to Neparholaspis cardioides Petrova, 1977, but different from the latter in ventro anal shield longer, between peritrematal and ventro anal shields without crack, expulsory vesicles near to posterior angles of genital shield, metapodal shields long and narrow. The latter species ventro anal shield short, between peritrematal and ventro anal shields with narrow crack, expulsory vesicles near to lateral margins of ventro anal shield, metapodal shields small and circular. Holotype ♀, paratype 1♀, from forest soils, in Liangshui Natural Preserve (47°10′N, 128°53′E), Yichun City, Heilongjiang Province, Aug. 1995. The new species is named in honour of Prof. Chen Peng. All the type specimens are deposited in the National Base of Plague and Brucellosis Control, Baicheng City, Jilin Province.