阔柄跳小蜂属一新种(膜翅目:跳小蜂科)—入侵害虫无花果蜡蚧的重要天敌  

A new species of Metaphycus( Hymenoptera: Encyrtidae),important parasitoid of the invasive Ceroplastes rusci in China

作　　者：王颖[1] 张彦周[1] 邓鋆 李海斌[1,2] 武三安[2] 李成德[3] 

机构地区：[1]中国科学院动物进化与系统学重点实验室,中国科学院动物研究所,北京100101 [2]北京林业大学省部共建森林培育与保护教育部重点实验室,北京100083 [3]东北林业大学林学院,哈尔滨150040

出　　处：《环境昆虫学报》2014年第3期451-454,共4页Journal of Environmental Entomology

基　　金：国家自然科学基金面上项目(31071950;31272350)

摘　　要：无花果蜡蚧Ceroplastes rusci可以危害多种林木,有时造成较大的经济损失。在对南方地区的无花果蜡蚧进行天敌调查时,发现寄生该蚧虫的阔柄跳小蜂属一新种。本文对该寄生蜂进行了形态描述,提供成虫主要形态特征图。该新种与Metaphycus zebratus的外部形态相近,但可根据以下特征进行区分:盾纵沟向后延伸约达到中胸盾片4/5;触角柄节最宽处在近端部;索节F1-F3浅棕色,F4外侧浅棕色但内侧面黄色;产卵器几乎不伸出,且与中足胫节几乎等长。Ceroplastes rusci can cause damage to many kinds of plants and sometimes lead to big economic losses. In the investigation of natural enemies conducted in South China, we discovered an undescribed species of M. alienus sp. n. which attacks C. rusci. In the present paper, the new species, M. alienus sp. n. , is described and illustrated with photomicrographs. M. alienus sp. n. is close to M. zebratus but can be separated from the latter by the characters as follow： notauli reaching about 4/5 of mesoscutum ; the maximum width of scape located at the subapical part ; F1 - F3 pale brown, outer face of Fd pale brown and inner face yellow; ovipositor hardly exserted, and the length of ovipositor as long as the mid tibia.

关 键 词：小蜂总科 阔柄跳小蜂属 新种 蚧科 中国 

分 类 号：Q969.546.4[生物学—昆虫学] S476[农业科学—农业昆虫与害虫防治]