9种农林有害蝽类昆虫高龄若虫龄期的区分

对9种主要为害果树、林木、蔬菜、稻麦、烟草、药草等植物有害蝽类昆虫高龄若虫龄期区分进行了研究,各种类的1~5龄若虫及成虫标本均通过田间采集和室内饲养方法获取。通过对不同种类若虫进行形态特征的比较形态学研究,提供了3~5龄若虫间的鉴别特征。9种有害蝽象分别为:华麦蝽Aelia nasuta Wagner、斑须蝽Dolycoris baccarum(L.)、麻皮蝽Erthesina fullo(Thunberg)、菜蝽Eurydema dominulus(Scopoli)、横纹菜蝽Eurydema gebleri Kolenati、茶翅蝽Halyomorpha halys(Stl)、二星蝽Stollia guttiger(Thunberg)、红脊长蝽Tropidothorax elegans(Distant)、瘤缘蝽Acanthocoris scaber(Linnaeus)。

田间常见8种有害蝽类若虫龄期的区分

本文采集了田间常见的8种有害蝽类,华麦蝽（Aelia nasuta Wagner）、斑须蝽[Dolycoris baccarum（Linn.）]、菜蝽[Eurydema dominulus（Scopoli）]、横纹菜蝽（Eurydema gebleri Kolenati）、茶翅蝽[Halyomorpha halys（Stl）]、二星蝽[Stollia guttiger（Thunberg）]、红脊长蝽[Tropidothorax elegans（Distant）]和瘤缘蝽[Acanthocoris scaber（Linn.）]。经过室内饲养获得其1~5龄若虫及成虫。通过对不同龄期若虫形态特征的比较形态学研究,确定了不同龄期若虫的鉴别特征,特别是低龄若虫的识别特征。

The genus Gynandrobremia Mamaev(Diptera: Cecidomyiidae) new to China with description of one new species

The genus Gynandrobremia Mamaev, 1965 is recorded from China for the first time. A new species,Gynandrobremia effurcata Jiao Bu sp. nov. is described and illustrated. A key to males of all known species of the genus in the world is provided. The generic diagnosis is revised.

A new species of Rhizomyia Kieffer(Diptera:Cecidomyiidae)from Northeast China

A new cecidomyiid species,Rhizomyia acroleptosipha sp.nov.collected from Ning’an in Heilongjiang Province of China,is described and illustrated as the first record of the mycophagous genus Rhizomyia Kieffer,1898 from Northeast China.This new species is characterized by the unique bell-jar-shaped aedeagus with the basal 3/4 extremely broadened and the distal 1/4 constricted to be inverted-funnel-shaped.A new revised generic description is given to include this new species,and a key to all known species in China is provided.