中国四川阳蝇属三新种(双翅目:蝇科)

THREE NEW SPECIES OF THE GENUS HELINA FROM SICHUAN, CHINA (DIPTERA:MUSCIDAE)

报道采自四川西部阳蝇属HelinaR D ,1830的 3个新种 :雅安阳蝇Helinayaanensissp nov ;花阳蝇He linaflosculasp nov ;类宽角阳蝇Helinainflatoidessp nov 。模式标本保存于军事医学科学院微生物流行病研究所医学昆虫标本馆 (北京 )。

In this paper, three new species of Helina R.D.1830 from mountainous region of western Sichuan Province, China collected during 1984～1991 are described. All the type specimens are kept in the Medical Entomological Collection, Institute of Microbiology and Epidemiology,AMMS, Beijing, China. 1. Helina yaanensis sp. nov. (Fig.1). ♂: Body length 7.5～9.0 mm. Closely related to Helina minutideleta Xue, Li et Wang, 1994, but differs from the latter in: Eyes with sparsely long hairs; mid femur on basal half with three strong bristles in blunt-head-like; hind tibia with av 3～4; male cerci with outer projection of apical-margin discernible. ♀: Unknown. Holotype ♂, Yaan (Mt.Laoban, 800m; 29°59'N, 102°57'E), Sichuan Province, Oct. 11,1991; Paratypes: 1♂, Nov. 9,1991, same locality as holotype; 1♂, Ya'an (Mt. Zhougong, 1700 m; 29°58'N, 102°59'E), Sichuan Province, June 6, 1984; 1♂, Mt. Erlang (Ganhaizi, 2780 m; 29°54'N, 102°09'E), Sichuan Province, July 3, 1988, above all collected by FENG Yan. 2. Helina floscula sp. nov. (Fig.2). ♂: Body length 8.0 mm. Closely related to Helina nigriannosa Xue et Zhao,1989, but differs from the latter in: Fore tibia without p seta; 1st sternite with hairs; pra absent; male cerci as long as surstyli in lateral view. ♀: Unknown. Holotype ♂, Hanyuan (Mt. Jaoding, 3200 m; 29°23' N, 102°51' E), Sichuan Province, June 23, 1987, collected by FENG Yan; Paratype 1♂: Hanyuan (Mt. Tuanbao, 2900 m, 29°23'N, 102°52'E), July 10, 1988, same collector as the holotype. 3. Helina inflatoides sp. nov. (Fig.3). ♂: Body length 6.0～7.0 mm. Closely related to Helina inflata Fang, Li et Deng, 1986, but differs from the latter in: Stigmata of thorax all black; mid tibia with 3～4 p setae; mid femur on middle part of ventral surface swollen slightly,on which there are densely brush-like setae; male cerci as long as surstyli in lateral view. ♀: Unknown. Holotype ♂, Mt. Emei (Wanfuding, 3099 m; 29°59'N, 103°43' E), Sichuan Province, June 23, 1984, collected by FENG Yan; Paratype 1♂, Mt. Emei (Leidongping, 2430 m; 29°58'N, 103°41'E), same date and collector as holotype.