5(5 B. Takalmshi 



Field observations on some 

 Apbididae in Formosa (supplement) 



Macrosiphum gobonis Mats. 



Cirsium JcawaJeamii : many viviparous females were observed on tbis plant 

 on May lit. 1924, at Tattaka, Taichu-prefecture. 



Macrosiphum pisi Kalt. 



Myrica rubra : some apterous viviparous females collected on this plant on 

 May 17. 1924, at Tattaka seem to belong to this species. 



Macrosiphum granarium Kirby. 



Setaria glauca: some apterous and winged viviparous females were observed 

 on October 26, 1923. near Taihoku. 



Macrosiphum ciiricola v. d. Goot. 

 Thea japonica : a few apterous forms on April 29, 1923, at Taihoku. 



Macrosiphum sanborni Gillette. 



The viviparous females were found in abundance on the host on October 

 1, 1923, at Taihoku. 31. nishigaharae Essig et Kuw. is a- synonym of this 

 species. 



Myzus persicae Sulz. 



Ipomaea batatas: abundant on December 23, 1923, near Taihoku. 



Nerium odorum: a few apterous viviparous females in April. 1923, at 

 Taihoku. 



Polygonum multiilorum : a few apterous viviparous, females on April 24, 

 1923, at Taihoku. 



Antirrhinum majus : a few apterous viviparous females in January, 1924, 

 at Taihoku. 



Zelkowa formosana: a few apterous viviparous females on May 15, 1924, 

 at Baikei, Taichu-perfecture. 



Sesamum indicum : some apterous forms on June 15. 1924, at Taihoku. 



