【摘要】 通过2001~2003年对秦巴山区食蚜蝇亚科昆虫的调查,结合整理陕西师范大学生命科学院及陕西理工学院生物系馆藏标本,初步鉴定出该地区食蚜蝇亚科昆虫5族24属56种,包括2新种、1中国新记录种、37陕西省新记录种及2个末定种。文中给出种类分布、新种描述及新记录种的主要特征,模式标本保存于陕西师范大学动物研究所。更多还原

【Abstract】 According to investigation on Syrphinae of Qinling-Bashan Mountains in 2001~2003 and identification of specimens preserved in College of Life Science, Shaanxi Normal University and Department of Biology, Shaanxi Science and Technology College, 24 genera and 56 species belonging to five tribes of Syrphinae are reported. Among them two species are described as new to science, one is new record to China, thirty-seven are first recorded in Shaanxi Province and two are unidentified. The type specimens are deposited in Institute of Zoology, Shaanxi Normal University. 1. Allobaccha nigricosta (Brunnetti, 1908), new record to China Baccha nigricosta Brunetti, 1908, Rec. Indian Mus., 2: 50. Baccha (Allobaccha) nigricosta Brunetti; Knutson L. V. et al. 1975, Family Syrphidae. In: A catalog of the Diptera of the oriental region. Vol. 2: 322. Specimens observed: 2♂♂, 04-Ⅵ-2002, Kuyu, Changan County, Shaanxi Province; 2♂♂, 12-Ⅵ-2002, Kuyu, Changan County, Shaanxi Province; 1♂, 30-Ⅷ-2002, Honghe valley, Meixian County, Shaanxi Province; 1♂, 13-Ⅸ-2002, Honghe Valley, Meixian County, Shaanxi Province. Distribution: Shaanxi, China; India, Pakistan. 2. Melanostoma tiantaiensis, sp. nov. (Figs.1~9) Female: unknown. Holotype ♂, Tiantai Mountain (1480 m elev. 3317N, 10704E), Hanzhong, Shaanxi Province. 31-Ⅲ-2002, collected by Huo Keke. This new species differs from other species of the genus with scutellum yellowish brown in the middle portion, hypandrium with lingula and distal portion of aedeagus longer. 3. Platycherius bidentatus, sp. nov. (Figs.10~16) Female: Unknown. Holotype ♂, Pinghe Mountaintop (1980 m elev. 3336N, 10832E), Ningshan County, Shaanxi Province, 30-Ⅵ-1981, collected by Cui fukui. This new species differs from other species of the genus with the apex of inner branch of cercus furecated.更多还原