- 188 - 
Infestation: 
1939 - 3948 inclusively it has been heavy throughout southern Ontario south or latitude 
44° but there has been" a gradual spread northward into the counties of Bruce, Grey and 
Simcoe and eastward as far as Kingston - Occasional specimens found in Carleton Co. but 
these have been found for the most part on trees recently imported from infested counties 
Larvae 
Number 
: May and June 
of Collections: 
14 
61 
Total 
Number of Specimens: 
234 
42 
(' 38 ) , 
('46), 
('38), 
045), 
Pupae: June Adults : June and July 
24 (. 39 ), 44 («40) 28 («41), 5 ('42), 8 (’43), 4 ('44), 32 ('45), 
127 (*47), 84 (>4o; = 431 
262 ('39), 249 (’40), 176 (’41), 26 ('42), 78 ('43), 15 ('44), 
215 ('46), 549 (’47), 267 ('48) = 2113 
— PARASITES 
- —-—-" 1 ' 
Occurrence 
Years 
Distribution 
Date 
Coil 
. yielding 
Name 
of parasites 
recorded 
emerged 
this 
parasite 
No. coll. 
No. larvae 
and/or pupae 
Hymenoptera 
Ichneumonidae 
Itoplectis conquisitor 
(Say) 
3 
1938 
Welland 
14-21 
June'38 
12-30 
3 
129 
n 11 
4 
1941 
Kent 
June'41 
26 June 
1 
15 
it n 
1 
1946 
Lambton 
'46 
1 
10 
n 11 
2 
1947 
Norfolk 
11-26 
June'46 
1 
8 
Itoplectis sp. 
3 
1948 
Bruce and 
Simcoe 
4-7 
July’48 
2 
6 
Calliephialtes comstockii 
(Cress.) 
8 
1938 
Welland 
10-24 
June'38 
2 
93 
11 11 
2 
1941 
York and 
17-30 
2 
13 
Essex 
June'41 
1 ! 11 
1 
1945 
Carleton 
5 July'45 
1 
4 
11 11 
2 
1947 
Elgin and 
5-8 
2 
13 
- - ———— mmmmmmmm Mm——i 
Wentworth 
July'47 
. 
