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柑桔恶性叶虫(Clitea metallica Chen)与柑桔花叶虫(Nodina punctatostriolata Fairm.)是柑桔的重要害虫。前一种是浙江、福建、广东柑桔区的大害虫。陈世骧(1935)报告后一种是Lamprosoma punctatostriolataFairm.的同物异名,曾在江西发现,作者于1956年在广州及惠来葵潭农场发现这害虫为害柑桔花甚烈。这两种柑桔害虫的成虫均是蓝黑色的小甲虫,外形及大小十分相似,很容易混淆,且均为害柑桔花蕾;但恶性叶虫还为害新芽、嫩茎及果实,无群居习性;而幼虫喜群居,常数十头聚集一嫩枝上,并分泌粘液及排泄粪便涂于嫩叶上,嫩叶受害焦黑而萎落,嫩枝亦枯萎。柑桔花叶虫在4、5月间出现,成虫群集为害花蕾,幼虫尚未
Clitea metallica Chen and Nodina punctatostriolata Fairm. Are important pests of citrus. The former is a pest in the citrus region of Zhejiang, Fujian and Guangdong. Chen Shifang (1935) reported the same species as Lamprosoma punctatostriolataFairm. It had been found in Jiangxi Province that the insect was found to have a very strong citrus flower in Guangzhou and Huilai Kwai Tan farms in 1956. The two adult citrus pests are blue-black small beetles, the shape and size are very similar, it is easy to confuse, and are harmful citrus flower buds; but also damage the spider mites young sprouts, stems and fruits, no habit of living; The larvae gregarious habitat ten gathered a tender stick, and the secretion of mucus and excretion of manure applied to young leaves, tender leaves damage black and fall, twigs are also withered. Citrus mosaic occurs in April and May, the adult insect cluster flower buds, larvae yet