wheat are infested, the last, according to Prof. F. M. Webster, often 

 being quite seriously injured by the aphides in the fall, the yourg 

 plants being attacked at or just below the ground. 



Fig. 2. — The European grain aphis {Siphocoryne avcmv), a common aphis on apple: o, migratory 

 female; b, sexual female; c, antenna of migratory female; d, side view of end of body of winged 

 male; c, under side of end of body of male; /, under side of end of body of sexual female. All 

 greatly enlarged (from Pergande). 



NATURAL HISTORY AND HABITS. 



This species has been well treated by Sanderson and Pergande, and 

 has been found to present a very interesting life history. The shiny, 

 jet-black winter eggs are deposited by the females in the fall around the 

 buds of the more terminal shoots, at crotches of limbs, and in cracks 



[Cir.81] 



