小麦沟牙甲(Helophorus auriculatusSharp.)是近几年鲁山、南召等县新出现的一种毁灭性的地下害虫。主要发生在稻麦两熟区的麦田。幼虫钻蛀发芽至拔节期的地中茎,造成种子不能出苗或枯心苗株,一般造成缺苗50％左右。严重者导致绝收。1985年鲁山、南召两县的8个乡调查发生面积占凋查面积的69.1％,造成减产25070吨。据悉此虫在湖北、陕西2省的局部地区危害也十分严重。作者等在1983年以来对其生活习性 Heliphorus auriculatus Sharp (RAPD) is a newly destructive underground pest in Lushan and Nancha County in recent years. Mainly occurred in the wheat and wheat fields in two wheat fields. Larvae borers germinate to mid-stems jointing, resulting in seeds can not be sprouted or dead seedlings, the general lack of seedlings caused about 50%. Severe cases lead to absolute failure. In 1985, Lushan and Nanzhao counties in eight townships accounted for 69.1% of the surveyed area, resulting in a reduction of 25070 tons. It is reported that insects in Hubei, Shaanxi Province, the two parts of the damage is also very serious. The author has been living on its habits since 1983