MACROLEPIDOPTERA AND THEIR PARASITES 113 
Generations: At least two. 
Hibernation: One record from an unidentified arctiid indicates the species may 
hibernate as a maggot in the host larva. 
ZENILLIA VIRILIS A. AND W. 
Hosts: Polygonia interrogationis Fab., Cynthia atalanta L., Epargyreus tityrus t 
Fab., Ceratomia catalpae Bois., Platysamia cecropia t L., Callosamia promethea t 
Dru., Hyphantria cunea t Dru., Potia legitima Grt., Trachea turbulenta ft aed 
Acronycta grisea f Walk., A. leporina vulpina t Grt., A. dactyna { Grt., 
impressa t Walk., A. oblinita S. and A. , Melalopha strigosa t Grt., M. es t 
Fitch, Gluphisia septentrionalis t Walk. , Anacamptodes ephyraria Walk. , Phigalia 
titea Cram. .. Congilia catenaria Dru. 
Localities: Many in Maine, Massachusetts, Rhode Island, Connecticut, New 
York, and New Jersey. 
Adults: Late June to August, and August to September. 
Number per host: One to five. 
Generations: ‘Two. 
Hibernation: As maggot in pupa of host. 
ZENILLIA VULGARIS FALL (COMPLEX) 
Hosts: Ascia rapae { L., Danaus menippe Hbn., Hemileuca maia Dru. or 
luccna Hy. Edw., Cirphis unipuncta Haw., Graptolitha antennata Walk., un- 
identified noctuid, Aisophila pometaria Harr., Synchlora rubrifrontaria Pack., 
EHranns tutiarva Harr. .. Cingilia catenaria Dru., ” Ennomos subsignarius Hbn. 
Localities: Many in New England, New York, and New Jersey. 
Adults: May to June, and late June to October. 
Number per host: One, occasionally two. 
Generations: Two or more. 
Hibernation: As maggot in pupa of host. 
ZENILLIA, N. SP. (1) 
Hosts: Alypia octomaculata Fab., Psychomorpha epimenis Dru. 
Localities: Castleton, Vt.; Everett, Revere, Somerville, Wilmington, and 
Worcester, Mass. 
Adults: Late May to June. 
Number per host: One to three. 
Generations: One. 
Hibernation: In the puparium. 
ZENILLIA, N. SP. (2) 
Hosts: Notolophus antigua L., Hemerocampa leucostigma S. and A., Olene pint 
Dyar., O. atomaria Walk. 
Localities: Bangor, Bucksport, Franklin, and Stockton, Maine; Boylston, 
Saugus, and Weston, Mass.; Camden and Trenton, N.J.; ‘and Mount Pocono, Pa. 
Adults: May and June. 
Number per host: One to seven. 
Generations: One. 
Hibernation: In the puparium. 
ZENILLIA, N. SP. (3) 
Host: Cerura cinerea Walk. 
Locality: Melrose, Mass. 
Adults: June. : 
Number per host: As many as five. 
Generations: One, possibly a second. 
Hibernation: In the puparium. 
ZENILLIA, N. SP. (4) 
Hosts: Halisidota tessellaris 8. and A., Diacrisia virginica Fab., Estigmene 
acrea Dru. 
Localities: Claremont, N.H.; and Bound Brook, Bridgewater, Hopewell, and 
North Branch, N.J. 
Adults: May to July, and August to September. 
33081—34—8 
