100 U. S. NATIONAL MUSEUM BULLETIN 216 



chusetts; Michigan (Detroit, Roscommon Co., and Whitefish Point 

 in Chippewa Co.); Minnesota (Itasca Park and Polk Co.); New Jer- 

 sey (Montclair); New York (Buffalo, "Halfway in the Hollow Hills 

 of Long Island," and Smithtown); North Carolina (Clinton); Nova 

 Scotia (vicinity of Medway in Queens Co.); Ohio (Bellefontaine and 

 Scioto Co.); Ontario (Fort Erie and Point Pelee); Pennsylvania 

 (Charter Oak and Pittsburgh); Quebec (Gaspe* Co., Luceville, and St. 

 Esprit); South Carolina (McClellanville and Ware Shoals); Virginia 

 (Arlington, Chain Bridge, and Falls Church) ; and Wisconsin ("Cran- 

 moor"). 



Collecting dates are from early summer to early fall. 



Early and late seasonal dates of interest are: May 15 at McClellan- 

 ville, S. C; May 24 at Clinton, N. C; May 30 at Tifton, Ga.; June 7 

 in the Hollow Hills of Long Island, N. Y.; June 13 at Falls Church, 

 Va.; June 17 in Scioto County, Ohio; September 8 at Detroit, Mich.; 

 September 13 at Chain Bridge, Va.; September 27 at Ware Shoals, 

 S. C; October 8 at "Cranmoor," Wis., and October 10 at Falls Church, 

 Va. 



There are five reared specimens as follows: 9, from Apatela sp., 

 Buffalo, N. Y., emerged April 1880, E. P. Van Duzee. 29, from 

 Apatela on Salix, Bellefontaine, Ohio, emerged February 1917, F. H. 

 Benjamin (Ithaca). 9, from hairy caterpillar on chokecherry, Trinity 

 Valley, B. C, collected July 8, 1938, emerged Mar. 29, 1939, K. 

 Graham. 9, from Gluphisia septentrionalis, Luceville, Que., emerged 

 Apr. 7, 1940. 



We have collected the subspecies several times, always flying at 

 one to two meters elevation along the edges of deciduous forests. 

 In flight, it looks superfically like Eumenes fraterna. 



Schaffner and Griswold (loc. cit.) report rearing this subspecies 

 from Apatela oblinita at Hudson, Maine, the parasite overwintering 

 in the host pupa and giving evidence of one generation per year. 

 Weiss (1924, Journ. New York Ent. Soc, vol. 32, p. 74) mentions 

 a rearing from the cocoon of Actias luna, collected at Elizabeth, N. J. 



This subspecies is the commonest and most widespread representa- 

 tive of the genus in North America. It occurs along the edges of 

 deciduous forests. Adults occur from early summer to early fall. 



lb. Metopius (Tylopius) pollinctorius nevadensis Cresson, new combination 



Figure 186,b 



Metopius nevadensis Cresson, 1879, Trans. Amer. Ent. Soc, vol. 7, proc. p. xxviii; 

 o\ $. Lectotype: ?, Nevada (Philadelphia) . 



Metopius edwardsii Townes, 1945, Mem. Amer. Ent. Soc, vol. 11, p. 571, syn- 

 onymy, in part. 



Male: Black. Face, much of clypeus except near clypeal fovea, 

 much of cheek, interantennal process, side of frons, mouth parts 



