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温室内接种试验表明，吐鲁番瓜类（西瓜、甜瓜、黄瓜）和棉花上的棉蚜AphisgossypiiGlover在以上两类作物之间相互移植不能存活，由此确立为不同的食物专化型──瓜蚜型和棉花蚜型。选择25个形态特征进行测量，对测量数据进行了变异分析和显著性测验。采用Fisher准则下的二类判别分析法对样本进行归类，明确地划归为瓜蚜型和棉花蚜型。依据判别系数筛选出6个对划归类群贡献最大的特征。
Inoculation experiments in greenhouse showed that Aphis gossypii Glover on cotton aphid (watermelon, melon, cucumber) and cotton aphid could not survive on each other and thus established as a different type of food-specific aphid And cotton aphid type. Select 25 morphological characteristics of the measurement, the measurement data were analyzed for variation and significance test. Two types of discriminant analysis under the Fisher criterion were used to classify the samples and categorize them as Aphis gossypii and Aphis gossypii. According to the discriminant coefficient, six features that have the most contribution to the classified groups are selected.