466 



JOURNAL OF ECO-VGMIC ENTOMOLOGY 



[Vol. 9 



hibernating larvae are destroyed and much of the crop may mature in 

 good condition. 



Nicotine sulphate or "Black Leaf 40" used in the proportions of 1 

 to 1600 of water will give temporary relief if applied once or twice, 

 but to get good results it must be used every two or three weeks from 

 June until just before blossoming time. 



Fig. 34. Telrastichus sp., a parasite of the chrysanthemum gall-fly. Detail 

 drawings: A, wings; B, last five joints of the antenna; C, middle tarsus; D, tibial 

 spur of front leg; E, tibial spur of the hind leg; F, mandible. Greatly enlarged. 

 (Original). 



Parasites 



During the summer a large number of parasites were reared from 

 infested plants and one species in particular did excellent work in the 

 University greenhouse. The material was sent away for determi- 

 nation and a few observations made as follows : 



Amhlymerus sp. This hymenopterous parasite has been described 

 by Mr. A. A. Girault, through the kindness of Dr. L, 0. Howard, and 



