INJURIOUS INSECTS OF 1904. 



189 



The Basswood here are always more or less affected with galls 

 on leaf and fruit as represented in Fig. 174. Fig. 175 represents 

 ane of the galls opened showing two larvae inside, and Fig. 176 a 



Fig. 174. — Basswood Leaf and I'ruit, showing Galls. Original. 



larva much enlarged, ^^'e have not yet reared the fly and hence 

 hesitate to name it. It belongs to the same family, Cecidomyiidcc, 

 as the gall flies in box elder, maple, and locust discussed above. 



Fig. 175. Fig. 176. 



Fig. 175. — Gall of Basswood enlarged, showing maggots within. Original. 

 Fig. 176. — A Maggot shown in Fig. 175, much enlarged. Original. 



FUMIGATION FOR THE VIOLET GALL FLY, DIPLOSIS 

 VIOLICOLA, COO., AND FOR THE BLACK OR BROWN 

 APHIS OF VIOLETS, RHOPALOSIPHUM VIOL^, PERG. 



During the Entomologist's absence from the office in Septem- 

 ber, his assistant, Mr. Ruggles, answered a call in St. Paul, from a 



12K 



