MACROLEPIDOPTERA AND THEIR PARASITES 39 
APANTESIS ARGE DRwv. 
Food plants: Low plants. 
Occurrence: Collections from Massachusetts, Connecticut, and Rhode Island. 
Totals received: Collections, 6; larvae, 7; years, 4. 
Larvae: June and July and fall to spring. 
Pupae: April and May, also July and August. 
Adults: April and May, and July and August. 
Generations: Two. 
EUCHAETIAS EGLE Drv. 
Food plant: Milkweed. 
Occurrence: New Hampshire, Vermont, Massachusetts, Rhode Island, Con- 
necticut, New York, New Jersey, and Pennsylvania. 
Totals received: Collections, 243; larvae,. 9,389; years, is 
Larvae: July to late September. 
Pupae: Fall to spring. 
Adults: Late May to early August. 
Generations: One. 
Parasites 
Collections yielding 
this parasite 
Parasite Years 
specimens | recovered 
Number of | Number of 
collections larvae 
Diptera: 
Achaetoneura euchaetiae Webber_-----------------__ 352 12 86 4, 894 
Bombyliomyia abrupta Wied__.-------._------------ 4 1 1 56 
Compsilura concinnata Meig__-__------------------- 59 10 28 1, 289 
NETTIVCSEL OAS [ese eae ee mtg I a id Jer NR I es nh 3 1 1 61 
Phorocera claripennis Macq_------------------------ 9 4 8 957 
LEEOT USEC TIVELLCINV AN ke EU ES ha 312 11 81 4, 404 
Tachinidae (unidentified puparia)-._____-___-_-____ 42 9 26 1, 253 
Winthemia datanae Town. (var. C.) _--------_--__-- 19 4 5 276 
LAU CHUM (OCC 45 6 15 1, 602 
ZEUS ALEVLTSS © yi ee see a a a Se 2 2 2 245 
Hymenoptera: 
Apanteles euchaetis AShm___-__-_._____-----------_- *656 14 103 5, 968 
Campoplegini (cocoons).-___-------_------_----_-- 4 2 3 91 
Hulimmneria valida Cress__.------------------------- 52 5 9 826 
HET DOSOCET ALGAE LULL SUSAN pee ea a ace a 34 3 4 618 
EL DOSOLCTAPULOSILUILS Na LON/ a= eee 3 3 3 65 
Meieorus hyphantriae Riley_-_---------.-_----------- 2 2 2 59 
EUCHAETIAS OREGONENSIS STRETCH 
Food plant: Dogbane. 
Occurrence: Collections from Lynnfield and Wakefield, Mass. 
Totals received: Collections, 2; larvae, 11; years, 2. 
Larvae: June to August. 
Pupae: July and August. 
Adults: Late July and August. 
ARCTIA CAJA, VAR. AMERICANA HARR. 
Food plants: Grasses. 
Occurrence: Collections from Grafton, Vt., and Sandisfield, Mass. 
Totals received: Collections, 2; larvae 2; years 2. 
Larvae: Fall to early summer. 
Pupae: July and August. 
Adults: July and August. 
UTETHEISA BELLA L. 
Food plant: Rattlebox. 
Occurrence: Collections from vicinity of Somerville, N.J., where in 1922 and 
again in 1926 it appeared in local outbreaks so severe that it completely defoliated 
its food plant. 
Totals received: Collections, 14; larvae, 3,086; years, 3. 
Larvae: July to early October. 
