KEY TO AMERICAN INSECT GALLS 



203 



ELBeutenmuller 



Pig. 235. Aylax galls. 1-3. Cat mint gall, A. glechoraae Linn. 4, S-lGall of rosin weed 

 stem wasp, A. leavenworthi Bass. 6. Gall of rosin weed flower wasp, A. laciniatus Gill. 

 7. Gall of A. r u f u s Gill. 8. Gall of dandelion gall wasp. A. t aV aixjac i Ashtn. 9. Gall of A. 

 chrysothamni Beutm. 10. Gall of A. p i s u m Walsh.Jl(After Beutm., Am. Mus. Nat. Hist.) 



