74 U. S. NATIONAL MUSEUM BULLETIN 216 



Freeman, Coleophora pruniella Clemens, Episimus argutanus (Clem- 

 ens), Exartema connectum McDunnough, Hedia variegana (Hubner), 

 Heterarthitis nemoratus (Fallen), Laspeyresia molesta Busck, Lexis 

 bicolor (Grote), Malacosoma disstria (Hubner), Metallus rohweri 

 MacGillivray, Psilocorsis sp., SpUonota ocellana (Denis and Schiffer- 

 miiller), Tischeria sp., and Rhyacionia buoliana (Schiff erm tiller) . 



This is a common species with a transcontinental range, mainly in 

 the Canadian and Transition zones. 



17. Scambus (Scambus) nigrifrons (Viereck) 



Figure 312,i 



Pimpla (Epiurus) nigrifrons Viereck, 1909, Proc. Ent. Soc. Washington, vol. 11, 

 p. 211; c?, 9- Lectotype (by present designation): d\ ? Massachusetts 

 (Washington). 



This species was described from six males and two females without 

 locality or host data. Information recently kindly provided b} r Miss 

 L. M. Walkley, from records at the U.S. National Museum, has estab- 

 lished that the above specimens were sent to the former "Bureau of 

 Entomology" by W. F. Fiske. This, I believe, indicates that the 

 specimens probably originated in New England, as at the time in 

 question Fiske was stationed at the Gipsy Moth Laboratory near 

 Boston, Mass. In addition, one male in the type series (the specimen 

 here chosen as lectotype) bears a label, "types from Hemerocampa 

 leucostigma" in the handwriting of the late R. A. Cushman, and other 

 data as follows: "Gip. Moth Lab. 820-T, U.S.N.M. Type No. 12274". 



Male: Front wing 4.0 to 5.0 mm. long; antenna with 23 to 24 

 segments; front femur with small but distinct preapical excision be- 

 neath; front tibia moderately bent; tergites, except at apices, densely, 

 rather finely punctate; clasper rather long and narrow; otherwise with 

 structure as in hispae. 



Color as in hispae except that middle coxa and front and middle 

 femora are largely reddish. 



Female: Front wing 5.0 to 6.25 mm. long; antenna with 23 to 24 

 segments; cheek about 0.25 times breadth of base of mandible; tergite 

 1 rather strongly elevated, with sides and apex rugose and rather 

 densely punctate; upper valve of ovipositor without a distinct nodus. 



Color as in Ucumseh. 



Specimens (22d\ 289): From Massachusetts (Boston); Michigan 

 (Cheboygan Co.) ; New Brunswick (Devon) ; New York (Brooklyn and 

 Flatbush on Long Island) ; Nova Scotia (Kemptown, Round Hill, and 

 Truro); Prince Edward Island (Charlottetown). 



The species was reared (probably in laboratory) at Charlottetown, 

 P. E. I., and Round Hill, N. S., during April, and at other stations on 

 various dates during July and August. 



