灯下诱集的亚洲玉米螟成虫形态近似种的鉴别

尖双突野螟Sitochroa verticalis(Linnaeus)]、豆扇野螟Pleuroptya ruralis(Scopoli)]、横线镰翅野螟Circobotys heterogenalis(Bremer)]与亚洲玉米螟Ostrinia furnacalis(Guenée)]均为草螟科昆虫,这几种昆虫的成虫在外部形态上极其相似,在利用测报灯对亚洲玉米螟种群动态进行监测时,常误将这3种草螟科的昆虫当做亚洲玉米螟,从而影响亚洲玉米螟种群动态及预测预报的准确性。为此本文对以上3种草螟科昆虫及亚洲玉米螟成虫的形态进行描述,并结合其线粒体COⅠ基因序列进行了种类鉴定,同时还利用稳定碳同位素技术对其寄主植物来源进行了分析。

Identification of similar species with Asian corn borer in morphology captured under the lamp trap

Sitochroa verticalis (Linnaeus),Pleuroptya ruralis (Scopoli),Circobotys heterogenalis (Bremer)are similar with Asian corn borer Ostrinia furnacalis (Guenée)in morphology,all of which belong to the family Cram-bidae.It is easy to make a mistake to recognize the three species listed above as O .furnacalis when monitoring the population dynamics by applying lamp trap for forecasting,which affects the accuracy of the population dynamics and forecast of O .furnacalis .Based on the morphology and the molecular markers mtDNA-COⅠ,comparison and analysis were taken among the four species of male moths in the family Crambidae.Stable carbon isotope was applied to analyze their host plants.