6 



INJURIOUS INSECTS OF 1903. 



"flax seeds." See drawing on page 7. On same date one speci- 

 men was found in first larval stage. See drawing. The latter did 

 not live. 



On July 19th a female emerged from one of the "flax seeds'' 

 formed by maggot of second stage which we secured June 25th 

 in breeding jar. This female died on the 21st, having previously 

 laid between 80 and 90 eggs on green shoot of wheat which had 

 sprung from the root and on dried stalk of plant against which 

 '•flax seeds" were lodged. The stalk was green, of course, when 

 placed in breeding jar. The eggs were laid singly, in clusters 



Fig. 4. — Female Hessian Fly on wheat stalk, about eight times natural size. Original. 



and in short strings. She was laying, of course, under abnor- 

 mal conditions. They were for the most pa-rt slightly curved, 

 though some were spindle-shaped. The egg pictured was 

 1-60 of an inch long and 1-250 of an inch wide in center, just 

 visible to naked eye. 



From the larvae in second stage, brought in July ist and 

 placed in breeding jar, forming puparia on July 8th, one fe- 

 male resulted, issuing from "flax seed" on August i6th. She 

 died August i8th, without ovipositing. These facts were duly 

 published in the Canadian Entomologist for November, 1903. 



