论文部分内容阅读
蚜虫的寄生蜂主要是蚜茧蜂科,蚜小蜂科较少,金小蜂科与细蜂科极少。蚜茧蜂长约1.4—2.4毫米,多为褐色或黑褐色。触角丝状;前翅有翅痣与第一回脉(中间脉),后翅有一基室;腹部具柄节,生于后足基节之间;第三腹节以后背板可以自由活动,产卵器自腹末前方腹面伸出。只能寄生在蚜虫体内,僵蚜腹部肿胀呈球形,羽化孔多在其腹管附近,圆形。种类与数量都多,国外已用于引种治蚜。蚜小蜂长约1毫米,褐色,
Aphids parasitic wasps are mainly aphid Braconidae, aphid small bee families, the little gold bee families and fine bee very few. Aphid cocoon bee about 1.4-2.4 mm, mostly brown or dark brown. Antenna filamentous; winged winged mole and the first back veins (middle veins), the hind wing has a base room; abdomen with a stem, born in the hind foot between the base section; the third abdomen after the back panel can be free activity, production Ovum from the abdomen front abdominal ventral. Only parasitic in aphids body, stiff aphid abdominal swelling was spherical, fenestration hole in the vicinity of its abdominal tube, round. Many species and quantities, foreign countries have been used to introduce aphids. Aphid small bee about 1 mm, brown,