J 26 ' NEW YORK STATE MUSEUM 



e Abdomen dark yellowish l)rown, the Imsal en- 

 largement of the fifth antennal segment with 

 a length twice its diameter, the fourth palpal 

 segment a little longer than the third. Reared 



from seed pods of violet 



semenivora Beutm., C. ai830 

 bbbbb 15 antennal segments 



c Antennal segments sessile; female 

 d Abdomen dark reddish 



e Scutellum fuscous yellowish 



/ Fifth antennal segment w4th a length twice 

 its diameter, the fourth palpal segment with 

 a length one-quarter greater than the third. 



Reared from bedstraw, Galium 



americana Felt. C. ai678k 

 // Fifth antennal segment with a length two and 

 one-half times its diameter ; the fourth pal- 

 pal segment longer than the third. Reared 



from a rosette willow gall 



albovittata Walsh, ai442a 



ec Scutellum reddish, fifth antennal segment with 



a length two and one-half times its diameter ; 



fourth palpal segment one-quarter longer than 



third. Reared from willow twigs 



c o r t i c i s Felt, C. ai966 

 dd Abdomen dark brown 



e Scutellum yellowish and fuscous; fifth antennal 

 segment with a length twice its diameter, the 

 fourth palpal segment one-half longer than the 



third. Reared from willow\ Salix 



salicifolia Felt, C. ai675 

 cc Scutellum fuscous yellowish ; fifth antennal seg- 

 ment with a length one-half greater than its 



diameter. Reared from Canada thistle 



g i b s o n i Felt. C. a222i 

 ddd Abdomen dull orange yellow ; scutellum dark red ; 

 fifth antennal segment with a length two and one- 

 half times its diameter, the fourth palpal segment 

 one-half longer than the third..fulva Felt, C. 257 

 cc Antennal segments stemmed ; male 



d Fifth antennal segment with a stem as long as the 

 basal enlargement 

 c Abdomen dark brown. Reared from a rosette 



willow gall albovittata Walsh, a 1442a 



dd Fifth antennal segment with a length one-quarter 

 greater than the basal enlargement 

 c Abdomen dark brown. Reared from heads of 

 Canada thistle g i b s o n i Felt. C. a222r 



