98 KYOKiU TAKAilASIII: 



young leaves. 



Mosla formosnna : the leaves ;ire attacked ami the infested leaves are 

 curled. !Muny winged and wiut^less vi\iparou3 females were observed on July 

 18, 1922, near Tailiolai. 



rhtni'iijo iii'ijor : many winged and wingless ones on the stalks of the 

 llowers on Marcli 19, 1921, near Tailioku. 



P.sidium (juijnvd : some \\'iuged and wingless ones on the lower side of 

 tlie young leaves on August 29, and Ol-UAmv 19, 1920 ; and on :\rarcli 20, 

 and November 17, 1921, near Taihoku. 



Sulix warLui-gii : some or many wingLfcs \iviparous females of an aphis, 

 observed on July 11, 1920, and, February 1 and 12, and March 4 and 9, 

 1921, and March 20 and :5(), and April G and 7, 1922, near Taihoku, seem 

 1 3 belong to Aphis (jossijpU GIov. 



Salvia sciipifonnis var. pinuaki : many winged and wingless viviparous 

 females wore observed on January 4, 1921, at Urai, Formasjx. 



Solammi mdongena : m;my viviparous f<:>rms on November S, 1920, near 

 Taihoku. The infested leaves were curled. 



Fik.c Iri/'oli't Aar. uni/diolata : many vivipai'ous females of an apliis, 

 observed on the lower side of the loaves on A^jril 25, 1921, at Kiu'im, seem 

 1 1 belong to this species. 



(Season when the insect is abundant) 



Near Taihoku the sjxicios is rather al)und,int about February and ^I-irch, 

 but its numbers aro sometimes reduced during tlie suumer. 



(^lale and oviparous female) 



It is continuous!}- viviparous tlu-oughout the ye;u- in Formosa, whei'c no 

 sexes have been discovered. 



(Winged vi\iparou3 female) 



The winged fjrms are very common in Formosa, as well .'us in Japan. 



(Communal life) 



This aphis is sonietinies found with Aphis p'/mi Do Goer in groups on 

 the Pirus sewiina, and with Mij~us pirsiccB (Sulz.) ou the Hibi.-vus or on the 

 S'jlunura rad<m<jtn i. 



(Disti'ibution) 



For.uoja: Taihoku, Kiiruu, Urai, Shirin, Girau, Kagi. 



