The results showed that there existed 115, 116 and 141 polypeptide spots in Periplaneta,americana P. japonica and Blattella germanica, respectively.

• 美洲大蠊、日本大蠊和德国小蠊分别显示多肽斑点115、116和141个；三者均大部分分布在43KD以下、pH6.；32以下和pH7