摘要
星豹蛛Pardosa astrigera L.Koch广泛分布于我省各地,主要活动于干旱地区。能捕食麦田、棉田、谷子、玉米以及蔬菜等多种农作物的害虫。由于它具有种群数量大,分布广,体型较大,捕食量大,成虫寿命长,繁殖力强,游猎性等特点,是一种比较有利用价值的蜘蛛。现将1982—1983年的观察研究报道如下。
The Pardosa astrigera is one kind of widely distributed spider that has high population in shanxi province. The pardosa astrigera can catch and eat destructive insects for the agriculture.
It can have two generations a year. The first generation is from the beginning of April to that of July; the second is from the end of July to the begining of April of the next year. A generation last about 88.3 days, but the overwintering generation last about 250 days. The adult and juvenile safoly can pass through the winter. The temperature is in 20-30℃ during the studiums of the Pardosa astrigera, time shortens as the temperature increases.
关键词
星豹蛛
生物学特性
蜘蛛
Pardosa astrigera, generation, stadium, Xian
