MACROLEPIDOPTERA AND THEIR PARASITES 119 
Number per host: One. 
Generations: One. 
Hibernation: In the puparium. 
This introduced parasite of P. dispar is rarely reared from native 
hosts. 
EUMASICERA STERNALIS Coa. 
Hosts: Anisota senatoriat S. and A., A. rubicundat Fab. 
Localities: Tamworth, N.H.; Cheshire and Lancaster, Mass.; Westerly, R.I.; 
and many in Connecticut, New York, and New Jersey. 
Adults: June to August. 
Number per host: One. 
Generations: One, occasionally a partial second. 
Hibernation: As maggot in host pupa. 
EUMASICERA SP., NEAR STERNALIS Coa. 
Hosts: Acronycta impleta Walk., Acronycta sp. 
Localities: Moravia, N.Y.; and Mount Bethel, N.J. 
Adults: June, and July to August. 
Number per host: As many as six. 
Generations: Two. 
Hibernation: In the puparium (?). 
CEROMASIA RUTILIA MEtG. 
Host: Cingilia catenaria Dru. 
Localities: Amherst and Effingham, N.H.; Bernardston, Deerfield, Greenfield, 
Lancaster, Lunenburg, Orange, Sherborn, and Sudbury, Mass.; Plainfield, Conn.; 
and Rome, N.Y. 
Adults: June to July, and August to October. 
Number per host: A few records indicate one. (Most of this material was 
reared in bulk, hence the few individual records.) 
Generations: Two. 
Hibernation: Method not known. 
CEROMASIA SENILIS MEIGc. 
qanosies Macronoctua onusta Grt., Papaipema nebris Guen., Arzama obliqua f 
alk. 
Localities: Ogunquit, Maine; Dover, N.H.; Belmont, Dedham, Melrose, 
Peabody, Saugus, Wakefield, Westfield, and Woburn, Mass.; and Elizabeth, N.J. 
Adults: May to June, and July to September. 
Number per host: One to three. 
Generations: Two. 
Hibernation: As maggot in host larva. 
CEROMASIA SP. (1) 
Hosts: Phigalia titea Cram. 
Localities: Hooksett, N.H.; Lunenburg, Lynnfield, and Melrose, Mass.; 
and Somerville, N.J. 
Adults: May and June. 
Number per host: One. 
Generations: One. 
Hibernation: In the puparium. 
CEROMASIA SP. (2) 
Host: Lycia ursaria Walk. 
Locality: Manchester, Conn. 
Adults: June. 
Number per host: As many as eight. 
Generations: One. 
Hibernation: In the puparium. 
