MACROLEPIDOPTERA AND THEIR PARASITES 155 
EUPLECTRUS SP. 
Host: Ennomos subsignarius Hbn. 
Locality: Northboro, Mass. 
Adults: July (from hosts collected in June.) 
Number per host: Many. 
Generations: At least two. 
Hibernation: Method not known. 
ELACHERTUS HYPHANTRIAE CwWwED. 
Hosts: Hyphantria cunea Dru., Hemerocampa definita Pack. 
Localities: Greenport, N.Y.; and Piscataway, N.J. 
Adults: July and August. 
Number per host: Many. 
Generations: Two. 
Hibernation: As pupa. 
ELACHERTUS MARYLANDICUS GiR. 
Hosts: Diacrisia virginica Fab., Hyphaniria cunea Dru., unidentified arctiid. 
Localities: Worcester, Mass.; Manchester, Conn.; and Patterson, Piscataway, 
and Somerville, N.J. 
Adults: June to July, and August to September. 
Number per host: Many. 
Generations: Two. 
Hibernation: As pupa. 
