148 MISC. PUBLICATION 188, U. S. DEPT. OF AGRICULTURE 
THERION PETIOLATUM Davis 
Host: Trachea turbulenita Hbn. 
Localities: Falmouth, Mass.; and Westerly, R.I. 
Adults: July. 
Number per host: One. 
Generations: One. 
Hibernation: In host pupa. 
THERION SASSACUS VIER. 
Hosts: Hyphantria cunea Dru., Cycnia inopinatus Hy. Edw. 
Localities: Bath, Burnham, Franklin, and Sandypoint, Maine; Middlesex, Vt.; 
Athol, Greenfield, and Worcester, Mass.; Westerly, R.I.; Cranberry Lake, Grey- 
court, and Setauket, N.Y.; and Bound Brook, Branchburg, Bridgewater, and 
South Brunswick, N.J. 
Adults: Middle of June to August. 
Number per host: One. 
Generations: One, though sometimes two in southern part of area. 
Hibernation: In host pupa. 
THERION SP. 
Host: Halisidota tessellaris S. and A. 
Localities: Frankfort, Maine; Leicester, Mass.; and Chazy, N.Y. 
Adults: July. 
Number per host: One. 
Generations: One. 
Hibernation: In host pupa. 
THERION WACCAGUM VIER. 
Hosts: Cycnia tenera Hbn., C. inopinatus Hy. Edw. 
Locality: Bridgewater, N.J. 
Adults: June and August. 
Number per host: One. 
Generations: Two. 
Hibernation: In host pupa. 
TRIBE CAMPOPLEGINI 
CAMPOFLEGIDEA DIVERSUS NORT. 
Hosts: Graptolitha sp., Unidentified noctuid. 
Localities: Danvers, Mass.; and Bridgewater, N.J. 
Adults: May and June. 
Number per host: One. 
Generations: One. 
Hibernation: In the cocoon. 
CAMPOPLEGIDEA VARIABILIS FRNKL. 
Host: Synchlora rubrifrontaria Pack. 
Locality: Hampden, Maine. 
Adults: July and August. 
Number per host: One. 
Generations: One. 
Hibernation: In the cocoon. 
CAMPOPLEGIDEA SP. (1) 
Host: Ista isabella S. and A. 
Locality: Melrose, Mass. 
Adults: June (from hosts collected in October). 
Number per host: One. 
Generations: Number not known. 
Hibernation: As larva in host larva. 
