摘要
本文报道采自陕西和浙江的跳小蜂二新种 ,即寄生梧桐木虱Thysanogynalimbata的长索木虱跳小蜂PsyllaephaguslongifuniculusXu,Sp .n .和寄生朴木虱Pachypsyllaceltidisgemma的阔柄木虱跳小蜂Psyl laephaguslatiscapusXu,sp.n .。对新种进行了详细描述。本文也是木虱跳小蜂属PsyllaephagusAshmead在我国分布的首次记录。
The paper reports two new species of genus Psyllaephagus, Encyrtidae, collected from Shaanxi and Zhejiang, China respectively. i.e. Psyllaephagus longifuniculus Xu, sp. n. ex Thysanogyna limbata and Psyllaephagus latiscapus Xu, sp. n. ex Pachypsylla celtidisgemma, which are described in detail. The genus Psyllaephagus Ashmead is a first record from China. 1\ Psyllaephagus longifuniculus Xu, sp. nov. (figs. 1～3) Host: Thysanogyna limbata. Distribution: Shaanxi(Wugong).\;Specimens examined: holotype ♀, Wugong(34°12′N,108°0′E),Shaanxi,1954 8 21, Dept. Plant Protection, Northwest Agric. Univ., ex. Thysanogyna limbata, 5526 1a; paratypes 4♀♀2♂♂, same data as holotype.\;Diagnosis: this new species is similar to Psyllaephagus femoralis Borelli 1920, but can be distinguished by the following combined characters: (1)pedicel 1 8 times as long as wide, the latter 2 0 times as long as wide; (2)all funicular segments clearly longer than wide, the latter with second fifth funicular segments slightly longer than wide, sixth funicular segment quadrate; (3)clava not clearly segmented, the latter with clava clearly segmented; (4)hind femora basal 0 6 black brown, the latter with hind femora basal 0 75 black brown; (5)gaster black and with weakly metallic green reflections, the latter with gaster metallic purple and brass reflections. 2\ Psyllaephagus latiscapus Xu, sp. n. (figs. 4～7) Host:Pachypsylla celtidisgemma. Distribution: Zhejiang(Hangzhou).\;Specimens examined: holotype ♀, Hangzhou(30°12′N, 120°48′E), Zhenjiang, 1957 5 26, CHEN Qihu, ex. Pachypsylla celtidisgemma, 5720 9; paratypes 6♀♀2♂♂, same data as holotype.\;Diagnosis: this new species is similar to Psyllaephagus caillardiae Sugonjaev, 1968, but can be distinguished by the following combined characters: (1)antennal scape 2 4 times as long as wide, the latter with scape 3 8 times as long as wide; (2)clava as long as fifth sixth funicular segments combined, the latter with clava as long as fourth sixth funicular segments combined; (3)fore wing with marginal vein slightly longer than wide, the latter with marginal vein quadrate.
出处
《林业科学》
CAS
CSCD
北大核心
2000年第4期39-41,共3页
Scientia Silvae Sinicae
基金
国家自然科学基金资助项目 !批准号 :3 9770 62 0
