食蚜瘿蚊与食螨瘿蚊是近年来棉田常见的捕食性天敌,前者捕食棉蚜、后者捕食棉红蜘蛛,两者同属于双翅目瘿蚊科。这一类天敌昆虫,体形都比较小,容易被忽视,为了便于识别和进行调查观察,兹就两种瘿蚊的形态特征和发生规律作一简单介绍。 Aphis gossypii and mite mites are common predatory natural enemies in cotton fields in recent years. The former predates the cotton aphid and the latter predates cotton spider mites, both of which belong to the order Diptera. This kind of natural enemy insects, the shape is relatively small, easily overlooked, in order to facilitate the identification and investigation, the morphological characteristics and occurrence of two kinds of mosquitoes are briefly introduced.