茶色新园蛛生物学特性观察  

Observation on the Biological Characteristics of Neoscona theisi Walckenaer

作　　者：庄肃学 谷昭威[2] 王昌贵 闫丰军 李梅 

机构地区：[1]日照市林业局,山东日照266800 [2]山东省林科院

出　　处：《山东林业科技》2011年第1期67-68,共2页Journal of Shandong Forestry Science and Technology

摘　　要：茶色新园蛛(Neoscona theisi Walckenaer)在鲁东南沿海地区1年发生1代,以不同龄若蛛和亚成蛛在松针基部、翘皮下、杂草丛中越冬。翌年4月上旬开始出蛰,5月下旬羽化成蛛,6月上旬交配产卵。卵期平均7.74天,若蛛平均345.3天,成蛛期平均61.7天。雌雄比为4:1。成蛛日均食小绿叶蝉4.5头,网捉量46.7头,是多种害虫的重要天敌。Neoscona theisi Walckenaer has one generation a year in southeast littoral of Shandong,China.Overwinter takes place as larvae or inferior adults at the base of pine needles,between the upwarpings or in weeds.Emergence occurs in early April the next year,imagines occurs in late May.Mating and oviposition occur in early June.The incubation period is 7.74 days.The life cycle of the larva is 345.3 days.The life span of the adult spider is 61.7 days.Male and female are in a ratio of four to one.An adult spider can eat 4.5 head of Empoasca flavescens（Fab.） and 46.7 head of insect pests on the web altogether a day.

关 键 词：茶色新园蛛 生物学 

分 类 号：S763.49[农业科学—森林保护学]