APHIDIDJE OF FORMOSA. 79 



lower surfcice of the leaf uu February 2C, 1921, uoar Tailiiikii. 



Capsella iursa-jMstons : a few nj'inplis (.if the wiuged form ou March 12, 

 1921, near Taihokii. 



Chenopodium alhuin : a few wingless viviparous females aud ujmiihs of 

 the winged form ou January 27, 1921, near Taihoku. 



Clinjsanthcmum, xp. : a few nymphs of the -w-iugod from ou March 12, 

 1921, near Taihoku. 



Bmss'ica spp. : the lower surfaces of the leaves are attacktd. 



Duranta plumicrl : the leaves are attacked. Numerous wingless and 

 wiuged -sdviparous females iu April, 1920, at Taihoku. 



Hibiscus alboinoschus : some wingless and winged viviparous females ou 

 January 25, 1922, near Taihoku. 



IpomcBci hiifdtas : a wingless viviparous female on December G, 1920, at 

 Tansui. 



Laduca oWltaml : wingless viviparous females ou March 25, 1921. 



Nujotiana tahacxm : numerous females ou the stalks in March, at Kagi 

 and Ako. 



Bipaver soianifcrum : numerous viviparous females iu Marcli, at Nauto, 

 Mat 1, Kagi, etc. 



Pdasites tncholohm : a few wingless vi\'ipai'ous females on Mai'ch 23, 1922, 

 near Taihoku. 



Pisum sativum : some wingless and winged forms on January 27, 1921, 

 near Taihoku. 



'Primus persica : some winged viviparous females on February 8, 1921, 

 near Taihoku. 



PsidiuiH (juyava : a numph ou March 8, 1921, near Taihoku. 



Phaphamis sativits : the lower siu'faces of the leaves ai'e attacked. 



Solanum melongcn i : wingless females on November 8, 1920, near Taihoku ; 

 a similar one on March 19, 1921, at Kagi. Some winged males and viviparous 

 females were observed on March 21, 1922, near Taihoku. 



SkVana aquatica : a few nymphs on February 28, 1921, near Taihoku. 



AUiuiii scorodopyrasiaii var vivip<iruia : a few wiuged viviparous females 

 were observed restiug ou this plaut, without producing 3'oung, ou October 1, 

 1921, at Shinten near Taihoku. 



