Permalink : http://hdl.handle.net/2115/53637

Morphological study and rearing experiment of Acer rufinerve-infesting aphids collected at the Rokko Mountains in Hyogo Prefecture, western Japan showed that three aphids Trichaitophorus koyaensis Takahashi, T. Takahashii Sorin and Periphyllus montanus Sorin are all the same species. Synonyms are listed under the valid name T. koyaensis. The fundatrix, oviparous female and male of T. kayaensis are described for the first time. Morphological variation of the apterous and alate viviparous females is added, and the life cycle is provided.