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南华松叶蜂Diprion nanhuaensis Xiao是云南省针叶树的重要害虫,以幼虫取食云南松针叶,受灾林分针叶被吃光,远看似火烧,幼树被害后当年可能枯死。1981年我们对该虫生物学特性进行了初步观察,并做了防治试验,现整理如下: 一、形态特征雌虫:体长9—11毫米。身体黑色,具黄色或黄褐色斑,足黑色带黄色斑,爪红褐色。翅透明,翅脉暗褐色,翅痣基部黑褐色,前端红褐色。腹部背板Ⅰ、Ⅱ、Ⅲ前缘两侧及侧缘,有时Ⅳ—Ⅷ侧斑,腹板Ⅰ—Ⅵ浅黄色。触角节齿状,20—22节,唇基前缘呈浅圆形凹入。颚眼距约等于触角1、2节之和。单眼后区宽为长的1.5倍。淡膜叶间距为一个淡膜叶宽度的1.6倍。锯腹片短粗,10环。锯鞘较短,锯鞘刷垫近肾形。
Diprion nanhuaensis Xiao Diprion nanhuaensis Xiao is an important pest of Yunnan conifers. The larvae feed on Pinus yunnanensis needles, and the coniferous forests of the affected forests are eaten as far as possible. In 1981 we conducted a preliminary observation of the biological characteristics of the worm and made a control test, are now organized as follows: First, the morphological characteristics of female insects: body length 9-11 mm. Body black, with yellow or brown spots, enough black with yellow spots, claws red brown. Winged transparent, veins dark brown, base black-brown wings, red-fronted front. Abdominal back Ⅰ, Ⅱ, Ⅲ both sides of the leading edge and the lateral margin, and sometimes Ⅳ-Ⅷ lateral spot, the web Ⅰ-Ⅵ pale yellow. Teeth nodding, 20-22 nodes, lip base front was shallow circular concave. Jaw spacing is equal to about the sum of antenna 1, 2. Monocular area 1.5 times longer after the width. Membrane leaf spacing of a pale film leaf width of 1.6 times. Saw abdomen thin, 10 rings. Saw sheath short, saw sheath brush pad nearly kidney-shaped.