短痣茎蜂属一新种记述(膜翅目:茎蜂科)

A New Species of the Genus Stigmatijanus Wei (Hymenoptera: Cephidae) from China

记述采自甘肃天水杏树Prunus armeniaca L.上的短痣茎蜂属1新种:杏短痣茎蜂Stigmatijanus armeniacae Wu,sp.nov.。模式标本保存于天水市秦州区森林病虫害防治检疫站标本室。

In the present paper, a new species of Cephidae, Stigmatijanus armeniacae Wu, sp. nov. is described from Tianshui, Gansu Province, China. The host of the new species is Prunus armeniacae L. of Rosaceae. The type specimens are deposited in the insect Collection of Forest Diseases and Pest Control ＆ Quarantine Station of Qinzhou Region, Tianshui City, Gansu Province, China. Stigmatijanus armeniacae Wu, sp. nov. （Figs. 1 - 11） This new species is quite similar to Stigmatijanus stigmaticus Maa, but can be distinguished by the following characters： the abdominal tergites 2-4 with distinct orange brown spots, the apical process of the front tibial spur about 1/3 the length of the spur, the vein 2r shorter than cell 1Rs, the female sheath about 7 tenths the length of the basal plate in lateral view and 4 times the length of cercus in dorsal view; the latter： the abdominal tergites 2-4 entirely black without orange brown spots, the apical process of the front tibial spur about 2/5 the length of the spur, the vein 2r as long as cell 1Rs, the female sheath about 6/11 the length of the basal plate in lateral view and only 3 times the length of cercus in dorsal view）. Holotype： ♀, Tianshui City, Gansu Province, China, 13-Ⅳ-2007, YU Dongxiang, from the damaged branch of apricot trees; Paratypes： 4 ♀♀, 1 3, same data as holotype; 6♀ ♀4 ♂♂, Miaoping, Tianshui City, Gansu Province,16- Ⅴ -2007, WU Xing-yu, 1 ♂, Xikou, Tianshui City, Gansu Provimce, 08-Ⅴ-2007, XIN Heng; 2 ♀♀ 3 ♂ ♂, Fruit institute, Tianshui City, Gansu Provimce, 11-Ⅳ-2007, WU Xing- yu, other data as holotype.