关键词: 库蠓属, 新种, 瑞丽库蠓, 雄虫

Abstract:

A species of Culicoides and a male Culicoides ruiliensis were newly found during the identification of specimens of the genus Culicoide collected from Tibet and Yunnan: the new species, Culicoides yigongensis sp.nov., and new male C. ruiliensis. The new species is somewhat allied to Cuicoides chengduensis Zhuo et Lee, 1984 and Culicoides liubaensis Liu et Wu, 2005 in the wing spots, but they are distinctly different in the shapes of aedeagus and parameres of male genitalia. The type specimens are deposited in the Shenyang Command Center for Disease Control and Prevention.
1. C. yigongensis sp. nov., (Fig. 1)
The new species is somewhat allied to C. chengduensis Zhuo et Lee, 1984 and C. liubaensis Liu et Wu 2005 in the wing spots, but they are distinctly different in the shapes of aedeagus and parameres of male genitalia.
Male: Wing length 0.95 mm. Eyes without interfacetal hairs； third segment of palpus with sensory pit, palpal ratio(PR)1.80. Wing with 12 pale spots. Ninth stermun with wide and shallow concave， vetral membrane with a few microscopic spicules; back-margin of ninth tergites with apicolateral process, and mid-part with “V” concave; distal portion of aedeagus with a triangular corona, arch height of aedeagus to about 1/3 of total length; parameres separate.
Female: Unknown.
Holotype ♂, Collected on 1991-09-06, from yigong, Bomi county Tibet, China.
2. C. ruiliensis Lee, 1980 (Fig. 2)
Male: Wing lenght 0.90 mm. Eyes with interfacetal hairs； sensilla coeloconica of antenna on 3. 13-15 segments， antennal ratio (AR) 1.04; third segment of palpus with sensory pit, palpal ratio (PR) 2.00. Wing with 9 pale spots. Ninth sternum with wide and deep concave， ventral membrane with a few microscopic spicules; back-margin of ninth tergites with wide “V” concave;aedeagus with mid-part wide, and distal portion columnar, arch height of aedeagus to about 1/3 of total length； parameres separate.
Specimens: 3♂, 2♂ collected on 1985-10-05, from Malipo county, and 1♂ collectedon 1995-09-23, from mengla county Yunnan province, China

Key words: Genus Culicoides, New species, Culicoides ruiliensis, Male