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两色长距姬小蜂Euplectrus bicolor Swederus属膜翅目姬小蜂科,是粘虫幼虫的一种多寄生的外寄生蜂。在我县粘虫的寄生性天敌中占75～90％,从1978～1981年,作者对此蜂进行了初步的研究,结果如下: 形态特征成虫:雌蜂体长约2～3毫米。头黑色有鳞状细纹,生有稀疏黄毛,略窄于胸,正面呈倒三角形;复眼赤褐色,成卵圆形突出,单眼3个,赤褐色,下面2个单眼与上面单眼联线间生有两根淡黄色长刚毛,触角大体黄褐色,9节,柄节长超过头顶,约为第2～4索节长之和,环状节1节,索节4节,第2～4索节约等长,第1索节略长,各节长约为宽的2倍,长棱形,棒节2节,与第1索节约等长;口器为淡黄色。胸黑色,
Eimeria bicolor Swederus is a multi-parasitic ectoparasite beetle larvae. From 1988 to 1981, the author conducted a preliminary study of the bee, the results are as follows: Morphological characteristics Adult: female body length of about 2 to 3 mm. Head black with squamous fine lines, born with sparse yellow hair, slightly narrower than the chest, the front was inverted triangle; compound eyes auburn, prominent oval, monocular 3, auburn, below 2 monocular and above the monocular line between There are two yellowish long bristles, tentacles broadly brown, 9, handle length over the top of the head, about the first 2 to 4 cable length and the section, the ring section 1, cable section 4, 2 ~ 4 cable Save the same length, the first cable section slightly longer, each section is about 2 times the width, long prismatic, clubs section 2, with the first cable to save the same length; mouthpiece is light yellow. Chest black,