im 



THE CANADIAN ENTOMOLOGIST. 



On JVIarch i nh, 1909, our late friend, Dr. Brodie, wrote to me : '"I 

 have always been under the impression that your described species was 

 distinct from the many lepldopterous gall-producers. And I was surprised 

 to see that Dyai* gives it as a synonym. In this particular I agree with 

 Kearfott and yourself." 



For those who have 

 not looked into the matter, 

 it may be well for me to 

 particularize some of the 

 points of difference in the 

 appearance and habits of 

 the two species under con- 

 sideration. 



Differences in Ap- 

 pearance. — In G. gallct- 

 asterei/aihe prevailing tone 

 is white — white thorax; 

 white fore wings, having 

 "a brown patch occupying 

 the costal half of the middle 

 third" of the wing. Fore 

 wings and their fringes 

 much spotted. 



In G. ga Ike dip lopapp i 

 the prevailing hue is deep 

 Indian red — thorax red ; 

 fore wing red, with a pale 

 divided fascia near the hind 

 margin ; unspotted on wing 

 and cilia. 



In - Food -PLANTS. — 

 Dr. Brodie pointed out 

 that the gall figured by 



Fig. 6. — Gnorinwschema galUvdiplopappi Fyles. 



A. — Gall on Diplopappus unibellafiis {x'-/2). 



B.— Gall opened to show chrj-salis on its mattress. 



C. — Larva arreatlv enlarsred. 



Kellicott is not one on Aster corymbosus, but one on Soiidago latifolia 

 (Can. Ent., Vol. XLI, p. 75). 



Mr. A. Cosens writes: "The motli G. asterella K.ell.- produces galls 

 which are locally abundant on 6*. latifolia L., but are found very rarely on 

 S. caesia, var. axillaris Gray" (Can. Ent., Vol. XLIl, p. 372). 



Dyar's List, No. 5621, 



