MACROLEPIDOPTERA AND THEIR PARASITES 127 
RoGas sp. (4) 
Host: Phigalia titea Cram. 
Locality: Framingham, Mass. 
Adults: June. 
Number per host: One. 
Generations: One. 
Hibernation: In cocoon. 
SUBFAMILY MICROGASTERINAE 
MICROGASTER SCHIZURAE MUEs. 
Hosts: Ianassa lignicolor Walk., Schizura concinna 8. and A. 
Localities: Lee and Prospect, Maine, and Brunswick, N.J. 
Adults: Late June to July. 
Number per host: 6 to 12 (cocoons more or less in clusters). 
Generations: One. 
Hibernation: In cocoon. 
MICROGASTER SCOPELOSOMAE MUES. 
Hosts: Conistra devia Grt., Conistra sp. 
Localities: Ellsworth, Maine, and Melrose, Mass. 
Adults: May and June. 
Number per host: 8 to 12 (cocoons in masses). 
Generations: One. 
Hibernation: In cocoon. 
MICROGASTER SP. 
Host: Phigalia titea Cram. 
Locality: Westwood, Mass. 
Adults: Late May. 
Number per host: One. 
Generations: Number not known. 
Hibernation: Method not known. 
MICROPLITIS CERATOMIAE RILEY 
Hosts: Hyloicus kalmiae 8. and A., H. gordius Cram., Paonias|{myops 8. and 
A., unidentified Sphingidae. 
Localities: Eliot, Hancock, and Prospect, Maine; Melrose, Revere, and Wake- 
field, Mass.; Cumberland, R. I.; and Norwich, N. Y 
Adults: Late May to J uly, and September to October. 
Number per host: Sometimes as many as 100. 
Generations: One, and at least a partial second. 
Hibernation: In cocoon. 
MICROPLITIS HYPHANTRIAE ASHM, 
Host: Acronycta impressa Walk. 
Locality: Orono, Maine. 
Adults: July to August, and October. 
Number per host: One. 
Generations: At least two. 
Hibernation: Method not known. 
MICROPLITIS KEWLEYI MUEs. 
Host: Huzxoa ochrogaster Guen. 
Locality: Bangor, Maine. 
Adults: June and July. 
Number per host: Several. 
Generations: Possibly two. 
Hibernation: Method not known. 
