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为了充分利用天敌,我们在1979—1980年对棉蚜、麦蚜的捕食性天敌食蚜蝇进行了调查研究。一、形态特征食蚜蝇科(Syrphidae)属于双翅目(Diptera)。1.成虫:中等大小,身体阔或细长。色泽多变,具暗色且有黄或乳白色的条纹或斑点,也有金黄色或绿色的。外观似蜂。头大,有的额颜突出,触角三节,芒状,着生在疣上。复眼大,雄的合眼式;有单眼。翅大,外缘有与边缘平行的横脉,使 R 脉和 M脉的缘室成为闭室,R_5室封闭,M 室与 Cu室较长,m_(1+2)各脉与 r_(4+5)脉之间有一条游离状伪脉。腹部可见第4—5节,腹部外形狭长、扁宽或棍棒状。雄的露尾节大、左右不
In order to make full use of natural enemies, we investigated the predatory natural enemies of cotton aphid and wheat aphid from the 1980s and 1980s. First, morphological characteristics Syrphidae (Diptera) Diptera (Diptera). Adult: Medium size, wide or slender body. Changeable color, with dark yellow or white stripes or spots, but also golden yellow or green. Looks like bees. Big head, some prominent forehead, tentacles three, mulberry, was born in warts. Compound eye large, male co-eye type; a monocular. The limbs of R and M veins are closed, and the R_5 chamber is closed, while the M and Cu chambers are longer. Each pulse of m_ (1 + 2) and r_ (4) +5) pulse between a free pseudo-pulse. Abdominal visible section 4-5, abdominal shape long, flat or stick stick. Male tail Festival, not about