小腹茧蜂亚科一新种记述及一新组合(膜翅目:茧蜂科)  

Description of a New Species and a New Combination of Microgastrinae (Hymenoptera:Braconidae) from China

作　　者：罗庆怀[1] 游兰韶[2] 

机构地区：[1]贵州师范大学地理与生物科学学院,贵州贵阳550001 [2]湖南农业大学生物安全科技学院,湖南长沙410128

出　　处：《Entomotaxonomia》2005年第1期50-56,共7页昆虫分类学报（英文）

摘　　要：记述小腹茧蜂亚科 Microgastrinae 湿小腹茧蜂属 Hygroplitis Thomson 1 新种:黔湿小腹茧蜂 Hygroplitis nigrita Luo et You, sp. nov.,并提出沟腹茧蜂属 DiolcogasterAshmead 1 新组合:赵氏沟腹茧蜂 Diolcogaster chaoi (Luo et You)。模式标本保存在贵州师范大学地理与生物科学学院。The species of Hygroplitis Thomson 1895 and Diolcogaster Ashmead 1900 reported before in China are put respectively in the genus Microgaster and Protomicroplitis according to Nixon's(1965)classification system. In this paper, a new species of Hygroplitis Thomson was described and a known species of Diolcogaster Ashmead was revised according to the Mason's (1981) system, which was received widely in the world. The two species were collected from Guizhou province, China. 1. Hygroplitis nigrita Luo et You, sp. nov. (Figs. 1~7) This species has the main characters of the genus Hygroplitis Thomson:propodeum with horizontal part and vertical part, the horizontal longer than vertical part;alitrunk shows flattened outline dorsally, i. e. the mesonotum, scutellum and horiozontal part form a very characteristic, almost straight line;notauli evident depressed posterorly. But it can be separated easily from other species of the genus by following structure:depressed posteror part of notauli not rogose, same as the mesonotum;tergite 3 smooth and as long as tergite 2. It has two ideas that the new species was named “nigrita”: 1)the color of its body almost black;2)Guizhou province has a abbreviated name“Qian”that means black in Chinese, which refers to its orginal place. Holotype: ♀, Xintianzhai, Guiyang, Guizhou Province;1982-Ⅷ-30, coll. LUO Qing- huai; Paratype: Jincui Lake, Guiyang, Guizhou Province; 2002-Ⅷ-26, coll. LUO Qing-huai. 2. Diolcogaster chaoi (Luo et You, 2003), comb. nov. (Figs. 8~18) Caracallatus chaoi Luo et You 2003, Wuyi Science Journal, 19:121. This species is very similar to Diolcogaster eclectes (Nixon,1965) ,but can be distinguished from the latter by following key. 1(2) Middle smooth part of pronotum larger, punctuate very small upper the smooth area;coxa of hind leg

关 键 词：膜趔目 茧蜂科 小腹茧蜂亚科 湿小腹茧蜂属 沟腹茧蜂属 新种 新组合 中国 

分 类 号：Q969.544.1[生物学—昆虫学]