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多异瓢虫Adonia variegata Goeze主要捕食蚜虫,在田间取食时间长,是一种很有利用价值的天敌.为了开展综合防治,发挥瓢虫对蚜虫的控制作用,我们于1981—1982年在乌鲁木齐地区对其生物学特性及田间消长规律进行了观察和研究.一、形态特征1.成虫 体长4.0—4.7毫米,长圆形;头部黄白色,后缘有凹形黑斑;前胸背板黄白色,基部有黑色横带,并向前分出四个支叉,有时左右两叉前部相合;鞘翅黄褐或红褐色,其上有13个黑斑,黑斑多变;各足腿节均黑色,其余部分赤橙色;腹部腹面黑色.2.卵 淡黄色,枣核形.
Adonia variegata Goeze is predatory predator in the field and takes a long time in the field, which is a valuable natural enemies.In order to carry out comprehensive control and play a role in the control of aphids by ladybugs, we found that in 1981-82 in Urumqi The biological characteristics of the region and the law of the growth and decline of the field were observed and studied.First, the morphological characteristics of adult body length 4.0-4.7 mm, oblong; head yellow-white, the posterior edge of concave dark spots; front chest Yellow and white plate, the base has a black horizontal band, and forward the four branches, and sometimes around the front of the two bifurcated; coleoptile brown or reddish brown, there are 13 spots, dark spots varied; Leg sections are black, the rest of the red-orange; abdomen ventral black .2. Egg pale yellow, jujube-shaped.