Pemphigus is a genus of true bugs belonging to the family Aphididae. The genus has almost cosmopolitan distribution. Species: * Shinji, 1924 * Pemphigus betae Doane, 1900 * * Tullgren, 1909 * (Hart, 1894) * Sanborn, 1904 * (Linnaeus, 1758) * Heer, 1853 * Zhang, Guangxue & Tiesen Zhong, 1985 * Passerini, 1863 * Zhang & Guangxue, 1981 * Ferrari, 1872 * * * (Zhang, Guangxue, Qiao & Xiaolin Chen, 1999) * Hottes & Frison, 1931 * Shinji, 1924 * Walsh, 1863 * Walsh, 1863 * (C.L.Koch, 1857) * Stroyan, 1964 * Rübsaamen, 1898 * * Buckton, 1896 * * Narzikulov, 1957 * Stroyan, 1970 * * Maxson, 1923 * Zhang & Guangxue, 1981 * Monzen, 1927 * Aoki, 1975 * Derbès, 1869 * Holman & Szelegiewicz, 1974 * Maxson, 1934 * * Cholodkovsky, 1