文献类型：期刊文献

中文题名：一种寄生梨茎蜂的重要天敌——梨茎蜂啮小蜂(膜翅目,姬小蜂科)新种记述

英文题名：A NEW SPECIES OF THE GENUS TETRASTICHUS (HYMENOPTERA, EULOPHIDAE) PARASITIZING PEAR SHOOT GIRDLER, JANUS PIRI (HYMENOPTERA, CEPHIDAE)

作者：杨忠岐[1] 杨珍[2] 姚艳霞[1]

第一作者：杨忠岐

机构：[1]中国林科院森林生态环境与保护研究所,国家林业局森林保护学重点实验室;[2]甘肃定西市森防站

年份：2005

卷号：30

期号：3

起止页码：613-617

中文期刊名：动物分类学报

外文期刊名：Acta Zootaxonomica Sinica

收录：CSTPCD;;北大核心:【北大核心2004】；CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：膜翅目;姬小蜂科;啮小蜂属;新种;梨茎蜂;天敌

外文关键词：Hymenoptera, Cephidae, Tetrastichus, new species, new host record, China.

分类号：Q969.544

摘要：描述了寄生梨茎蜂JanuspiriOkamotoetMuramatsu的一种重要天敌新种———梨茎蜂啮小蜂Tetrastichusjanusisp.nov.,该种属小蜂总科姬小蜂科啮小蜂属。新种群集外寄生于梨茎蜂幼虫,一般1头寄主上寄生4～14头个体,雌雄性比为2.6∶1.0。一年发生两代。在越冬代梨茎蜂幼虫中的寄生率达44.7%。新种在梨茎蜂的生物防治中具有良好的应用前景。这是啮小蜂亚科在国内外首次发现寄生于茎蜂科害虫。新种模式标本保存于中国林业科学研究院昆虫标本馆。
The present paper describes a new species of Eulophidae （ Hymenoptera, Chalcidoidea）, Tetrastichus janusi sp. nov. It is gregariously ecto-parasitic on larva of pear shoot sawfly,Janus piri Okamoto and Muramatsu, a serious pest in pear orchards in most parts of China. The ratio of female and male is 2.6 ： 1.0 and usaully 4-14 individuals were found to parasitize one host. The species have two generations a year. Its parasitic ratio was 44.7% in the overwintered host larva. It is the first record that the cephid pest is a host of the subfamily Tetrastichinae （Eulophidae）. The new species may have a potential as a biological control agent for the important pest. The type specimens were deposited in the Insect Museum of Chinese Academy of Forestry, Beijing.