AraiDID.E OF FoiaiUS.V. j;;;> 



Phyllaphis fagifoliae Tak.ili. 



Trans. Sapporo Nat. Hist. Sjc. pp. 11) 1—195 and p. 200 (1919) 



(Host plant) 



Fugns species : the lower surfaces uf the leaves are attacked. 



(Soasou when the aphis is common) 



Near Tokyo this spades is rather rare, rarely l)ecomin!i; abundant, and 

 during the summer becoming ^■ory scarce. 



(Winged vi\iparous female) 



In many Aphididas the females of tlie first generation are wingless, the 

 winged forms appearing in the sect)nd and the following generations, but in 

 PlujUapIiis faijifolioB the females of the first and second generatiaus are pronded 

 with wings, and those of the third aul tlie following generations, and the si^xu- 

 para>, are wingless. ' 



(Male and oviparous female) 



Near Tokyo the winged males and wingless oviparous f<-m:iles make their 

 appearance from the end of Ootobc;r until the beginning ol Nu\ ember. The 

 male insects are scanty in nuuibers. 



(Intermediate) 



No intermediates have been observed. 



(Notes on the life history near Tokyo) 



The eggs hatch about th;_" iLiiddle of April, and the winged forms of the 

 first geuoratiou have a uymphal stage lasting about two Meeks. The adults 

 of the second generation occur at the end of May, and fi-om that time on a 

 few wingless generations are repeateil niitil the sexual forms are jirodueed in 

 the fall. Each oviparous female places upjn the branches of the Facjus 15 or 

 16 eggs, which are covered, by means of the posterior pair of legs, with white 

 wax secreted l)y their mother insects. 



(Habit) 



It is very inactive m habit. 



(Distiilmtiou) 



Japan : Tokyo. 



