52 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



dorsal vitta obscure and not clearly marked especially on third seg- 

 ment when held in a light that does not allow reflection of pollen to 

 vary on either side; first segment with a pair, second wirh two pairs, 

 and third with a row of marginal macrochaetae ; discal portions of the 

 second and third segments with strong bristles or macrochaetae that 

 tend to blend somewhat with the erect abdominal hairs; fourth seg- 

 ment covered with erect bristles about one-half size of marginal 

 macrochaetae on third segment; hypopygium brownish to black, 

 inner and outer forceps long and of even length, former straight and 

 parallel except at apex, where they diverge slightly (when viewed 

 from behind they appear fused for two-thirds their length). 



Length 8 to 10 mm. 



The stigmal plates on the puparium are protuberant. 



Type and allotype localities. — Saugus and Dedham, Mass., respec- 

 tively. 



Distribution. — Maine 5, New Hampshire 8, Vermont 8, Massachu- 

 setts 16, Connecticut 3, Rhode Island 2, New York 1, New Jersey 5, 

 Alberta 1. Published records not duplicated above : New Brunswick 

 (Tothill), Maine (Johnson), Colorado 2 (Coquillett ms., Walton ms.), 

 British Columbia (Tothill). Coquillett records New Hampshire, 

 Michigan, Tennessee, Georgia, and California. The material that 

 Aldrich and Webber recorded as being from Utah, Arizona, and 

 Maryland has been transferred to Carcelia reclinata. 



Type.— Male, U.S.N.M. No. 54154. 



Hosts. — Malacosoma disstria Hiibner 290, Malacosoma americana 

 (Fabricius) 129, Hemileucamai a (Drury) and lucina Henry Edwards 

 2, Hyphantria cunea (Drury) 1, unidentified tenthredinid 1. Pub- 

 lished and unpublished records not duplicated in above material: 

 M. disstria (Tothill), D at ana integerrima Grote and Robinson 

 (Schaffner and Griswold). Owing to the confusion surrounding the 

 previous identity of Carcelia malacosomae y the following published 

 host records should be viewed with some suspicion until further evi- 

 dence is assembled: Arachnis picta Packard (Coquillett), Callarctia 

 proxima (Guerin-Meneville) (Coquillett), Callarctia ornata Packard 

 (Tothill), Archips argyrospila (Walker) (Gill), Turuptiana per- 

 maculata (Packard) (Gillette). Tothill's record of Phragmatobia 

 assimilans Walker probably refers to Carcelia reclinata. 



Remarks. — The foregoing description was based on an examination 

 of the following material (all previously determined as u chelo?iiae , ' > ) : 

 421 specimens bearing Gypsy Moth Laboratory note numbers (in- 

 cluding the following material reared from Malacosoma disstria: 

 Type, 2 male and 1 female paratypes, No. 10001; 1 female paratype, 

 10001a; allot ype and 1 female paratype, 10001c; 1 male paratype, 

 10081 J20; 1 male paratype, 11710 Jla. The following material 



