【摘要】 金黄指突水虻Ptecticus aurifer Walker以腐烂的有机物和动物粪便为食,在禽畜粪便处理及生产具有较高经济价值的昆虫蛋白饲料等方面有重要的潜在应用价值。本文对以下内容进行了研究:(1)报道了各虫态形态特征与行为习性。(2)在25℃下,金黄指突水虻从卵到成虫平均需要37 d,4日龄后,幼虫取食量明显增加,体重快速增长,9日龄后体重可增长至0.20 g左右,预蛹能自行爬出培养基寻找干燥的场所化蛹。(3)成虫喜欢阴湿的环境,交配和产卵多发生在清晨或傍晚,成虫交配过程中具有领域性行为,完成交配要求较大的空间。雌性水虻寻找富含腐殖质的地方产卵,平均产卵152粒。(4)在广东省南岭地区,金黄指突水虻一年发生5到6代,世代重叠明显,以预蛹和蛹的形态越冬。更多还原

【Abstract】 Ptecticus aurifer Walker consumes manure and livestock feed,especially larval flies utilization aids in the natural recycling of manure and the insects-based feedstiff are high quality food for many larger animails. The morphology and behavior of this pest were investigated both in the field and laboratory. P. aurifer needs an average of 37 d to develop from egg to adult,and the body mass of larva increased rapidly to 0. 20 g from the 4thto 9thday at 25℃. Prepupae move away from food to find a drier place to pupate. Adults like to stay in sheltered and humid places,and the males of this fly display strong lekking behavior. Mating and oviposition were normally observed at morning and dusk,and a relatively large space is required for adults to mate successfully. The female lays an average of 152 eggs per mass around humus-rich sites. P. aurifer has 5-6 generations a year and overwinters as prepupae or pupae in northern Guangdong Province.更多还原