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地老虎体色多较阴暗,翅上斑纹不很明朗,而且同一种类也常因世代、食料的不同,色泽有所变化,因此仅根据外部形态鉴别种类比较困难。本文结合外生殖器等特征,介绍几种重要地老虎的鉴别,供测报工作者参考。一、小地老虎 Agroti ypsilon Rottemberg体长21—23毫米,翅展48—50毫米,雄蛾触角双栉形,端1/3线形,头部褐色,红褐色、黑褐色或黑灰色,额的上缘有黑条纹,头顶有黑斑,颈板基部与中部各有一黑色横纹;胸部背面褐色至黑灰色;腹部灰褐色;前翅棕褐色至黑褐色,前缘区色较浓,外线至亚端线间色
To the tiger body color and more dark, wings on the stripes is not very clear, and often the same species due to generations, different food, color change, so only based on the external form of identification is more difficult. In this paper, with the characteristics of genitalia, etc., introduces the identification of several important tiger for the newspaper workers reference. First, the small tiger Agroti ypsilon Rottemberg body length 21-23 mm, wingspan 48-50 mm, male antennae double comb-shaped, the end of 1/3 linear, head brown, reddish brown, dark brown or dark gray, the amount of The upper edge of the black stripes, head with dark spots, the neck base and the middle of a black stripes; the back of the chest brown to dark gray; abdomen taupe; forewing brown to dark brown, leading edge area color thick, outside to Asia End color