概述

膜翅目 小蜂总科（Ｃｈａｌｃｉｄｏｉｄｅａ）昆虫的通称.包括小蜂科（Ｃｈａｌｃｉｄｉｄａｅ）、跳小蜂科（Ｅｎｃｙｒｔｉｄａｅ）、 蚜小蜂科（ＡｐｈｅAｌｉｎｉｄａｅ）、啮小蜂科（Ｔｅｔｒａｓｔｒｉｃｈｉｄａｅ）、 纹翅小蜂科（ＴｒｉAｃｈｏｇｒａｍａｔｉｄａｅ）、 金小蜂科（Ｐｔｅｒｏｍａｌｉｄａｅ）等１０余科.体长一般在５ｍｍ以下.头部横形.复眼大，单眼３个.触角束状.前胸背板和翅基片不接触.膜质翅２对， 翅脉只有１条，其中部弯向前缘，在末端之前后外方分出１短的痣脉.足的转节２节.腹部的 腹板骨化无褶， 产卵器在肛门前的一定距离自腹面伸出.许多种类寄生于农林害虫，如寄生于红铃 麦蛾幼虫的黑青小蜂（Ｄｉｂｒａｃｈｉｓｃａｖｕｓ），寄生于 白粉虱 若虫的丽匀鞭蚜小蜂（Ｅｎｃａｒｓｉａｆｏｒｍｏｓａ），寄生于多种鳞翅目重要害虫卵中的 赤眼蜂（Ｔｒｉｃｈｏｇｒａｍａ），寄生于 三化螟、 二化螟卵并能捕食螟卵及幼虫的螟卵啮小蜂（Ｔｅｔｒａｓｔｉｃｈｕｓｃｈｏｅｎｏｂｉ）等.Hymenoptera Chalcidoidea (Chalcidoidea) insects known. Including Chalcididae (Chalcididae), Encyrtidae (Encyrtidae), Aphelinidae (ApheAlinidae), Tetrastichus Branch (Tetrastrichidae), grain-winged wasp Section (TriAchogramatidae), Pteromalidae (Pteromalidae) and so on more than 10 subjects. 5mm body length usually below. head transverse. compound eyes large, monocular 3. antennae bundle. pronotum and the wing does not contact the substrate. membranaceous two pairs of wings, wing vein is only one, which bend the Ministry of the leading edge, at the end of the foreign before and after a short period of separation of mole pulse. foot switch section 2. ossification Aphyllophorales web abdomen, capacity egg apparatus prior to a certain distance from the anus protruding from the ventral surface. many kinds of parasites in the agriculture and forestry pests, such as red bell Angoumois grain moth larvae feed on the black-blue wasp (Dibrachiscavus), parasitic on the whitefly nymphs whip Lai Yun Aphytis ( Encarsiaformosa), parasitic eggs in a variety of important pests of Lepidoptera in Trichogramma (Trichograma), parasitic in the yellow rice borer, stem borer eggs and can prey eggs and larvae of the borer moth eggs Tetrastichus (Tetrastichuschoenobi) and so on.