黑足厚缘肖叶甲的生物学特性及其在藤茶上的发生

Biological Characteristics and Occurrence of Aoria nigripes(Coleoptera:Chrysomelidae)in Ampelopsis grossedentata

针对新型代茶植物藤茶上肖叶甲类昆虫暴发性危害的现象,拟通过野外调查和室内饲养观察明确其具体种类及危害风险性。经形态学和解剖学观察鉴定,该昆虫为黑足厚缘肖叶甲(Aoria nigripes),隶属于鞘翅目、叶甲总科、肖叶甲科、厚缘肖叶甲属,目前仅在葡萄属和地锦属植物上有零星发生。该叶甲在贵州1 a发生1代,成虫盛发期为6—7月;成虫取食叶片和嫩梢,取食处呈条形孔洞,活动力强,善飞行,具假死性;雌成虫可多次产卵,单雌产卵量为34.50粒;幼虫爬行能力弱,主要取食藤茶根部呈隧道状。

Aiming at the phenomenon of the explosive damage of beetle insects on the new‐generation vine tea,this study would clarify the specific species and damage risks through filed survey and indoor rearing observation.The results showed that the insect was identified by morphological and anatomical observations as Aoria nigripes,which belonged to Coleoptera,Chrysomeloidae,Eumolpidea,and Aoria.Currently,it only occurs sporadically in the plants of Vitis and Parthenocissus.It is clear that the leaf beetle has one generation per year in Guizhou,and the adult blooming period is from June to July.The adult damages the leaves and shoots,and the damaged parts is a strip‐shaped hole.It has strong activity,is good at flying,and has pseudolethality.The adults can lay eggs for many times,and the number of eggs laid can reach 34.50 eggs per female.The larvae have weak crawling ability,and mainly feed on the roots of vine tea in a tunnel shape.