摘要
报道 2种寄生榆童锤角叶蜂AgenocimbexelminaLietWu的姬蜂 ,其中 1种为新种 :天水镶颚姬蜂HyposotertianshuiensisSheng,sp .nov .;另一种为已知种 :日本欧姬蜂Opheltesjaponicus (Cushman ,1 92 4 )。
Two species of Ichneumonidae (including one new species), parasitizing Agenocimbex elmina Li et Wu (Hymenoptera: Cimbicidae) were found in Tianshui, Gansu Province, China. Specimens studied are deposited in the General Station of Forest Pest Management, State Forestry Administration, Shenyang, China.1 Hyposoter tianshuiensis Sheng, sp. nov. (Figs 1 5) Female. Body 8 0 10?mm long Fore wing 5 5 7 0?mm long. Malar space about 0 63 time as long as basal width of mandible. Postocellar line about 1 3 times as long as ocular ocellar line. Flagellum of antenna with 34 36 segments. Mesopleurum with fine leathery texture, sparse weak punctures, and 1 transverse median groove in front of mesopleural fovea. Lateral longitudinal carina of propodeum indistinct. Lateral carinae of areola very weak. Without costula. Abdominal tergites with fine leathery texture, its apical portion weakly compressed. First tergite about 2 2 times as long as its apical width. Ovipositor sheath shorter than apical depth of abdomen. Male. Body 7 8?mm long. Fore wing 5 0 5 5?mm long. Larva. Mature larva ivory white, 8 9?mm long. Cocoon. Cocoon is very thin, french grey, about cylindrical (very weakly flat), 10 11?mm long. Holotype ♀, Tianshui, Gansu, China,12 Apr. 2001, WU Xing Yu, emerged from the cocoon of Agenocimbex elmina indoors. Paratypes: 8♀♀, 9♂♂, same data as holotype; 24♀♀, 12♂♂, 8 Apr. 2002, SHENG Mao Ling, other data as holotype. This species is similar to H. vierecki Townes, Momoi & Townes, 1965, but can be distinguished from the latter by the following characters: postocellar line about 1 3 times as long as ocular ocellar line; propodeum without costula and apical transverse carina; middle section of median longitudinal carinae (la teral carinae of areola) disappeared or very weak and indistinct; hind tarsi (except apices of tarsus 2 4 blackish brown) yellowish brown. H. vierecki has postocellar line double length of ocular ocellar line; costulae incomplete; areola rectangular to squarish, its bounding carinae sharp to weak, apical closing carina angled medially and hind tarsi blackish brown. H. vierecki is a parasitoid of Lymantria dispar L. (Lepidoptera: Lymantriidae). It is a gregarious endoparasitoid in larva of Agenocimbex elmina Li et Wu (Hymenoptera: Cimbicidae). It overwinters as mature larva inside its host larva which was in the cocoon, and emerges from cocoon in spring. Eight to twenty two parasitoid wasps were reared from one cocoon of A. elmina Li et Wu. 2 Opheltes japonicus (Cushman, 1924) Specimens examined: 2♀♀, 2♂♂, Tianshui, Gansu,China, 16 May 2001, WU Xing Yu, reared from the cocoon of Agenocimbex elmina indoors; 1♀, Xinbin, Liaoning, China,20 July 1998, SHENG Mao Ling. Host: Agenocimbex elmina Li et Wu (Hymenoptera: Cimbicidae). Opheltes japonicus (Cushman) is a single endoparasitoid in the cocoon of A. elmina.
出处
《动物分类学报》
CSCD
北大核心
2004年第3期549-552,共4页
Acta Zootaxonomica Sinica
关键词
膜翅目
姬蜂科
镶颚姬蜂属
锤角叶蜂科
榆童锤角叶蜂
Hymenoptera, Ichneumonidae, Hyposoter, new species, Cimbicidae, Agenocimbex elmina.
