【摘要】 <正> 蝗虫的种类很多,是为害农作物和牧草的重要害虫。有些种类的形态在不同地点或不同时间有很大的差异,这些差异给分类工作者带来了很大的麻烦,并且往往由于标本数量少或工作粗糙而鉴定错误,甚至错订成新种或新亚种。就飞蝗(Locusta migratoria L.)而言,Uvarov(1921)发表了变型学说,揭示了飞蝗的群居型、散居型、中间型之间后代可以互变的秘密。而在此学说发表之前,人们都把群居型和散居型飞蝗当作二个种。这种种内变异现象引起了分类工作者和生态工作者的重视。近来国内外学者对种下分类工作研究颇多,(1972)对雏蝗[Chorthippus macrocerus (F.-W.)]的种内变异进行了研究,利用t值来区分亚种。更多还原

【Abstract】 In the present paper a diseription of geographic variability of Bryodcma luctuo sum luctuosum (Stoll.) in Chinghai-Tibetan Plateau of (Ihina is given. The variability is shown in size and coloration. The size of body becomes smaller and coloration of body changes into lighter from the elevation 2,000 in to 4,800 m. In the great majority of specimens collected from above the elevation 4,000 m, the blackish spors of elytra and hind femora are hazy or absent. The question of subspecies of Chorthip-pus macrocerus (F.W.) is also discussed.更多还原