MACROLEPIDOPTERA AND THEIR PARASITES 57 
Larvae: May to October. 
Pupae: July and August, and fall to June. 
Adults: May to June, and July to August. 
Generations: Two. 
ACRONYCTA LEPUSCULINA GUEN. 
Food plants: Aspen, and willow. 
Occurrence: Collections from Maine and New York. 
Totals received: Collections, 15; larvae, 26; years, 5. 
Larvae: July to October. 
Pupae: Fall to June. 
Adults: June and early July. 
Parasites 
Collections yielding 
this parasite 
Parasite Years 
specimens | recovered 
Number of | Number of 
collections larvae 
Hymenoptera: 
Apanteles acronyciae Riley_____..-.------------_--- “I 1 1 1 
Microplitis sp. (cocoon). ---._.---_---------------- 1 1 1 4 
ACRONYCTA LEPORINA VULPINA GRT. 
Food plant: Aspen. 
Occurrence: Collections from Greenville, Hampden, Kingsbury, Lily Bay, 
Sandy Bay, Stream, West Forks and Winn, Maine; and Cheshire, Mass. 
Totals received: Collections, 11: larvae, 60; years, 2. 
Larvae: August and September. 
Pupae: Fall to summer. 
Adults: June and July. 
Parasites 
Collections yielding 
this parasite 
Parasite Years 
specimens | recovered 
Number of | Number of 
collections larvae 
Diptera: 
PDB INTS DORA Ng BAOOL V e e as e 25 2 5 19 
Hymenoptera: 
Apanteles sp. (cocoons) 
ACRONYCTA INNOTATA GUEN. 
Food plant: Yellow birch. 
Occurrence: One larva collected at Cranberry Lake, N.Y., in July. 
Pupa: August to June. 
Adult: June. 
ACRONYCTA AMERICANA HaARR. 
Food plants: Apple, box elder, elm, maple, oak, willow. 
Occurrence: Collections from New England, New York, New Jersey, and 
Pennsylvania. 
Totals received: Collections, 76; larvae, 146; years, 14. 
Larvae: July to October. 
Pupae: Fall to June. 
Adults: June and early July. 
