武夷山区恙螨二新种和一新记录

TWO NEW SPECIES AND ONE NEW RECORD OF TROMBICULID MITES IN WUYI MOUNTAINOUS AREA

1976—1978年我们在武夷山脉的邵武和建阳二县山区进行调查时,采集到一些恙螨。经过鉴定,其中有二种新种恙螨和一种在我国的新记录恙螨。新种是异样囊棒恙螨(Ascoschoengastiaaliena, sp. nov.)和武夷毫前恙螨(Walchiella wuyiensis, sp. nov.),新记录是李氏囊棒恙螨(Aschschoengastia leechi(Domrow, 1962))。现分述如下。 1.异样囊棒恙螨Ascoschoengastia aliena, 新种(图一)

The specimens for the present study were collected in a preliminary survey of trombiculid mites in the Wuyi mountainous area during 1976-1977. Two new species were obtained. They are Ascoschoengastia aliena, sp. nov. and Walchiella Wuyiensis, sp nov. Besides, Ascoschoengastia leechi (Domrow, 1962) is recorded for the first time from Fujian Province. Type specimens are deposited in the Fujian Medical College. Ascoschoengastia alina, sp. nov. (figs. I, 1-3) Small mite, milky white in color. Body ovate, with slight constriction beh- ind leg 3. fp=B-N(b)-BNB, fT=6B. PW>AW, PL>AM>AL. Sensilla clavate. Eyes absent. DS=24-27, arranged in 2-6-6-6-4-2, 2-6-6-5-3-2 or 2-6-6-6-4-2-1. P=554. SIF=6B-N-3-2111.1000. Holotype and 13 paratypes ex Rattus bowersii la- touchei from Jian-yang in Sept, 1976. This new species is similar to A. lorius (Gunther, 1939), but the later has eyes, fT=4B, and with shorter body measurements. Walchiella wuyiensis, sp. nov. (figs. Ⅱ 4-7) Small or median mite, milky yellow in color. Body ovate, with slight con traction behind leg 3. Ga=N, fp=B-B-BBB, fT=TB.S AM>AL>PL. Sensilla spin- dle-shaped, scutum trapezoid. Eyes 2×2. DS=37-42, arranged in 2-6-6-2-8 7-4-2 or 2-6-6-7-8-6-4-2; Ip=594-614. SIF=7B.S-N-3-3111.0000. Holo- type and 2 paratypes ex Tamiops swinhoei from Shao-wu in Oct., 1977. This new species is similar to W. traubi (Womersley, 1952), but the later wi- th fp = N-N-NNN, nearly square scutum and with larger body measurements.