1978年,我们在进行红铃虫天敌资源调查时发现了寄生于红铃虫幼虫的两种茧蜂:在棉花花期采到的为黄胸茧蜂,收花期采到的为黑胸茧蜂。这两种茧蜂仅胸部颜色不同,其它形态特征很相似。1979年进行了两种茧蜂生物学特性的研究。在饲养过程中,发现同一种寄生蜂所产的卵在不同温度下发育出来的成蜂胸部分别出现了不同的颜色, In 1978, we conducted a survey of natural enemies of red bollworm found two parasitoids beetle larvae of red beetle bees: cotton collected in the flowering period of the yellow caterpillar, collected during the harvest of the black thorn brachii. The two beetles have only different color of the chest, and other morphological features are similar. In 1979 two species of Braconian bee biological characteristics of the study. During the breeding process, it was found that the eggs of the same parasitic wasps developed different colors at different temperatures,