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Occurrence 
Years 
Distribution 
Date 
Name 
of parasites 
recorded 
emerged 
Hymenoptera 
Ichneumonidae 
Toxophoroides 
albomarginatus (Cress.) 
1 
1947 
Simcoe 
Bruce, 
16 July 
5 47 
Pimplopterus sp. 
13 
1948 
Carleton,Grey, 
Norfolk and 
30 June - 
17 July 
Simcoe 
s 48 
Phytodietus sp. 
1 
1948 
Frontenac 
12 July 
*48 
Exochus sp. 
3 
1948 
Bruce and 
2-8 July 
Norfolk 
5 48 
# 
Braconidae 
Apanteles sp 0 
2 
1948 
Frontenac 
3-6 July 
•48 
Meteorus sp. 
1 
1948 
Grey 
12 July 
*48 
Microgaster sp. 
1 
1946 
Simcoe 
3 July 
*46 
n n 
5 
1948 
Carleton and 
3-6 July 
Russell 
*48 
Collo yielding 
this parasite 
Noo coll, 
8 
1 
1 
3 
and/or pupae 
No. larvae 
10 
70 
10 
11 
10 
12 
8 
23 
Noc 8296 
Dichomeris ligulella Him. 
Ye ars recorded s 1938, 1940, 1941, 1942, 1943 and 1948 
Food Plants: Oak (20), Basswood (10), Poplar (3), Birch (3), Beech (l) and Maple (l) 
Distribution? Carleton, Elgin, Glengarry, Grenville, Grey, Lambton, Lanark, Norfolk, Northumberland, 
Ontario, Russell, Simcoe, Dufferin, Durham, Welland and York 
Infestation: 1942 increasing and severe skeletonizing oaks in Dufferin, Durham, Norfolk and York 
Larvae: June 
June and July 
Adults : July 
