摘要
记述了我国金小蜂科长角金小蜂属一新种——竹瘿长角金小蜂Norbanusaiolomorphi sp.nov.。新种寄生在我国南方为害毛竹的竹瘿广肩小蜂Aiolomo-rphus rhopaloides Walker的幼虫及蛹上,寄生率达36.6％,在控制这种害虫上具有重要意义。新种的模式标本保存在西北林学院天敌昆虫室及中南林学院昆虫标本室。
The present paper describes a new pteromalid species, Norbanus aiolomor-phi. It parasitizes the larva and pupa of moso-bamboo eurytomid, Aiolomor-phus rhopaloides Walker, 1871(Hymenoptera:Chalcidoidea, Eurytomidae) whichmakes galls on the branchlets of moso-bamboo(Phyllostachys pubescens Mazel) and is a serious pest for the plant in most parts of South China. Norbanus aiolomorphi Yang et Wang, sp. nov. (Figs1-6) Female: 3.2-4.6 mm long. Black, hardly nitidus; basal part of gasterhaving a lemon-yellow spot; antenna yellow brown; legs with coxae black,femora and pretarsi dark brown, tarsi and the apex 1/2 of hind tibia yellowwhite, the others yellow brown; wings hyaline. Head and thorax densely raised-reticulate. Relative measurement: Headwidth 66, height 54, POL 12, OOL 16, frons width 46, the distance betweenthe upper margin of torulus and median ocellus 14, between its lower marginand apex of clypeus 35, malar space 15, scape plus radicula 36, pedicellusplus flagellum 95; thorax 78:56, pronotum median length 7, mesoscutum 29,scutellum 28 (width 32), propodeum 14; marginal vein 36, postmarginal 21,stigmal vein 10; gaster 102:46. Ovipositor not exerted. lst gaster tergite ha-ving its hind margin slightly trilobed. The last tarsus expanded, particulalyin female which has it as wide as the intumescent tibia, and with pretarsusvexillum obviously (Fig.6). Male: 2.8-3.9mm long. Similar to female. Its antenna extremely long(Fig. 4), flagellum plus pedicellus 1.02-1.11 times the length of head,tho-rax and gaster combined and 2.94-3.04 times the width of head; flagellumwith irregular whorles of long dense erect setae on each segment which isnever nodulated; scape curved seriously with broad emargination dorsally onbasal 2/3; legs relatively slender, last tarsus thiner than the tibia; gasterlong-elliptical, its length about as long as thorax (72:74), width distinctlynarrower than head and thorax(19:62:52). The new species is close to the Australian pteromalid N. longifasciatus(Girault), 1914, but may be distinguished from
出处
《林业科学》
EI
CAS
CSCD
北大核心
1993年第6期492-496,共5页
Scientia Silvae Sinicae
关键词
小蜂科
金小蜂科
竹瘿广肩
小蜂
Hymenopter
Chalcidoidea
Pteromalidae
Norbanus
New spcies
Biology
