- 90 - 
No, 3921 Schizura concinna A, and S. 
Years recorded : 1940 - 1948 incl. 
Food Plants ; Elm (18), Apple (10), Willow (9), Walnut (8), Birch (6), Cherry (4), Poplar (4), 
Butternut (3), Ash (l), Ironwood (l), Juneberry (l) 
Distribution, Bruce, Carleton, Durham, Essex, Grenville, Grey, Halton, Hastings, Lambton, Lanark, 
~—— Norfolk, Peterborough, Renfrew, Simcoe, Victoria, Waterloo and Welland. 
Inf estation ; 1942 heavy in Essex; 1943 severe local defoliation at a few points in Southern Ontario; 
1944 medium from Peterborough to^Sliucoe, light in Ottawa Valley; 1945 light in Durham 
and Simcoe. 
Larvae; July, Aug . and Sept. 
Pupae ; Aug, Sept , and Oct, 
Adults : (July 
Nu mber of Collect i ons s 
To tal Number of Specimens - 
2 (HO), 2 (’41), 1 ( 5 42) 9 8 0 43), 12 (’44), 10 (’45), 21 (’46), 3 (’47) 
6 0 48) = 65 
12 (’40), 8 (»41),50 (’42),86 (*43),162 (’44),335 (’46),407 (’46036 047), 
55 048), = 1151 
NoB,- Sometimes overwinters in the larval stage 
11 O iJe KJV/HAW W 
4 
PARASITES 
Occurrence 
Years 
Distribution 
Date 
Coll. 
yielding 
Name 
of parasites 
recorded 
emerged 
this 
parasite 
— ---- 
No. Coll 
No. larvae 
and/or pupae 
Diptera 
Tachinidae 
1 
1943 
Renfrew 
(Jan.’44) 
1 
32 
Compsilura concinnata (M«) 
Rvmenoptera 
Ichneumonidae 
Hyposoter fugitivus 
29 Aug. 
fugitivus (Say) 
1 
1940 
Grey 
1 
6 
*40 
Phobocampe pallipes (Prov.] 
1 
1944 
Simcoe 
(Feb.“45) 
1 
30 
Labrorychus sp c 
11 
1946 
Durham 
(Mar.*47) 
2 
100 
Enicospilus arcuatus (Felt, 
1 
1946 
Simc oe 
(Mar.>47) 
1 
14 
