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在东北林区胡桃楸树上常见两种害虫,过去大家都叫胡桃金花虫,常常大量发生,造成严重危害,例如1959—1962年吉林省净月潭林场人工林内、1956年黑龙江省带岭和1960年五营原始林内都曾大量发生,作者名之为胡挑楸扁叶(虫甲)(G.peltoidea Gebler)和胡桃扁叶(虫甲)(G.thoracica Baly),前者分布于东北的北部地区,后者分布于南部地区和华北。由于这两种害虫外形十分相似而生活习性又完全相同,所以一般误认为同种或互相混淆。本文对这两种害虫主要形态特征作简单识别介绍。
In the northeast forest Juglans mandshurica tree common two kinds of pests, in the past we are called walnut golden pest, often occur in large numbers, causing serious harm, for example, 1959-1962 Jingyuetan forestry plantation in 1956, Heilongjiang Province Ridge And the original campuses of Wuying in 1960. The authors named G.peltoidea Gebler and G. thoracica Baly, the former distributed in the northeast Of the northern region, which is located in the southern region and North China. As these two pests are very similar in appearance and their habits of life are exactly the same, they are usually mistaken for the same species or for mutual confusion. In this paper, the main morphological characteristics of these two pests for simple identification introduced.