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我们在豫北、豫东等地调查,发现两种天牛。 家茸天牛 Trichoferus campestris(Faldermann)又称北方家天牛。 为害刺槐、苹果、杨、柳、榆、椿、白蜡等。东北林区运来的桦木亦带有此虫。 红缘天牛 Asias halodendri(Pallas)为害刺槐、苹果、梨、枣、葡萄、榆等。 一、形态特征 家茸天牛 成虫体长13—18毫米,宽3—5毫米。棕褐色、黑褐色至褐色等。全身密被细茸毛(图—1)。卵长椭圆形,黄白色。幼虫体长20毫米左右,头部黑褐色,体黄白色,前胸背板前方骨化部分有一黄色横带,分为四段;非骨化部分呈白色,似“山”字形(图二-2)。
We in the north of Henan, eastern Henan and other places to investigate and found two kinds of celastrus. Trilobata Trichoferus campestris (Faldermann), also known as the northern home day cow. Harmless acacia, apple, poplar, willow, elm, Chun, white wax and so on. The birch from the northeastern region also carries this pest. Asias halodendri (Pallas) harm Robinia, apple, pear, dates, grapes, elm and so on. First, the morphological characteristics of Antler adult body length 13-18 mm, width 3-5 mm. Sepia, dark brown to brown and so on. The whole body is thin hair (Figure -1). Egg oval, yellow-white. Larvae body length of about 20 millimeters, the head dark brown, body yellow-white, anterior radix ossification in front of the front and back of a yellow band, divided into four sections; non-ossification part was white, like “mountain” 2).