摘要
本文描述了黑襟毛瓢虫各虫态的形态特征,幼虫龄期的识别,同时还研究了瓢虫各虫态的主要生活习性,包括虫卵的孵化,各虫态的发育历期,幼虫捕食习性,成虫羽化、交尾、产卵等习性,以及成虫在室内外不同温度下对各种蚜虫的捕食量和不同饲料对瓢虫发育历期的影响等。
The paper describes the morphological characters of Scymnus(Neopullus) hoffmanni weise (Coleoptera, Coccinelloidae) and the distinctionbetween different larval instars. The main bionomics of the ladybeetle isobseived, including the hatching of eggs, the developmental periods of eachstagc, the predatory habits of larvae, and the habits of emergance, copulationand oviposition in adult stage. The preyed number of aphids of several speciesat temperatures in the laboratory and outside, the effect of food components onthe developmental stages of the ladybettle were studied. The abservation showsthat ladybeetle preys on eight species of aphids, 1st to 4th instar larvae of ricecase worm Cnaphalccrocis modinalis Guene, Sogatella furcifera (Horvath) andNephoteitix cincticeps (Vhler).
关键词
瓢虫科
形态
习性
coccinollidac
morphology
habit
