94 JOURNAL AND PROCEEDINGS. 
Raspberry Gall Fly.—This is by no means so formidable an 
enemy as the last, but it is one almost unnoticed in Ontario until 
last year, when Dr. Brodie, of Toronto, who has been making a 
speciality of the study of Canadian galls and gall flies, wrote an — 
article for the Canadian Horticulturist describing this fly. He tells 
us that it has been plentiful for the last twenty or thirty years in the 
county of York, on both cultivated and wild varieties of raspberries. 
The only reason why this insect does not completely destroy our 
raspberry plantations is the fact of its being kept in check by 
parasites, and, in Dr. Brodie’s opinion, the encouragement of these is, 
in almost all cases, the true way of keeping in check the harmful insects. 
The illustrations which follow were drawn from life by Miss 
Violet Brodie, the doctor’s daughter. Fig. 3 represents one of the 
galls as it appears on the raspberry bushes. 
They are over two inches long and three- 
quarters of an inch in diameter, covered with 
short prickles and of the same color as the 
bark of the cane. If these are collected the 
second season and put in a bottle the gall flies 
will emerge about the middle of May and 
may be seen walking on the side of the 
jar next the light. Fig. 4 represents the insect 
under consideration, which is known to en- 
tomologists as Dusastrophus Turgidus. The 
doctor describes them as short and chunky, 
the head and thorax black and the abdo- 
men reddish brown, flattened laterally and 
rounded. 
FIG. 3. 
Fic. 4.—THE GALL PRODUCER. 
(Diastrophus Turgzdus.) PARASITE OF THE GALL FLy. 
