102 RYoicai T.UC.\.ri.\SUI : 



iufcsted leaves are cntleil. 



liumex crisjnts .- many ^\iuj;li s.s ;tu<1 wiugeil forms were ol)served iu April, 

 1922, near Taihuku. 



(Season wLeu the iusoot Ls common) 



Near Taiiiokii tbis aphis ma>' be sjen ratlier foiumouly from Fel iriiar v to June. 



(Win}j;etl viviparous female) 



Tiie winged forms are in'odufetl at any season in Formosa. 



(Male and ovipir(_)ns fciuale) 



It is ct)ntimioii«ly viviparous tliroiigliout llio year near Taili )ku, where 

 the sexes ha\e never l)een oliserved. 



(I)istril)r.tioM) 



Japan : Tokyo, etc. 



Formosa : Taihoku. 



Aphis tavaresi I^<1 Gner. 



Host plant. -Citrus sp. 



Some winged and v\inglos3 vivi])arous females were collected I>y Mr. ilaki 

 iu Novoudier, 1912, near Taihoku. The sp3cie3 seems to be rare, since the 

 authir has never olisorved it in our islaed. 



Aphis lilii I>i>ht ? 



(Host plant) 



Liliiim opecirii : the distil parts of the stalks, the lower surface of the 

 leav'es, and the Ijuds are attacked. 



(Sc'asou when the aphis is common) 



Near Taihoku this aphis is to be fouml almost at any seas m, sometimes 

 CK'Curring in gi'eat numbers. 



(Winged viviparous female) 



The winged forms are numerous as in many other Aphis. 



(ilalo and oviparous female) 



The sexuaks do not make their apix'arance even in the winter, the species 

 Ixjiug coutinuously vivipirous in our island. 



