38 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.64, 



September 1-5, 1913, Billy's Island, Okefenokee Swamp (J. C. 

 Bradley); female, September 9, 1910, Stone Mountain. Illinois: 

 Female, July, 1875, Peoria. Kansas : Female, July 23, 1901, Wells- 

 ville; female, 1915, Johnson County (R. H. Beamer). Maryland: 

 Female, August 20, 1894, Chestertown (E. G. Vanatta). Massachu- 

 setts: Male, Nantucket Isle; female, October 5, 1910, Forest Hills; 

 2 females, September 20, 1905, Waquoit (Owen Bryant) ; female., 

 August 4, 1902, Sconset. Minnesota : Female, July 14, 1922, Fridley 

 sand dunes, Anoka County (A. A. Nichol) ; male, August 5, 1896. 

 Gray Cloud Island. Mississippi; Male, August 14, Corinth (H. S. 

 Barber). Nebraska: Female, July 2, 1915, Rulo (E. M. Partridge). 

 New Jersey : 2 males, September 2, 1901, Lucaston ; male, September 

 7, 1890, Camden County; female, August 6, 1911, Trenton; female, 

 May 13, Andrews; female. May 23, 1904, lona; female, August 25, 

 1902, lona (E. Daecke) ; female, August 24, 1912, Ramsey; female, 

 September 4, 1898, Great Notch ; female. New York : Female, July 

 27, 1900, Cold Spring Harbor, Long Island; male, September 12, 

 New Russia, Essex County (J. C. Bradley). North Carolina: 2 

 males, August 20, 1908, Raleigh; female. Pennsylvania: Female. 

 Texas: Male, August 23, 1907, Palestine (W. W. Yothers). Vir- 

 ginia: Male, June 13, 1910, Falls Church (R. A. Cushman) ; female, 

 July 28, Falls Church; female, August 20, 1913, Falls Church (C. 

 T. Greene) ; female, September, Falls Church; 3 males, September 

 4, 1915, Falls Church (C. T. Greene) ; male, September 13, Falls 

 Church; male, September 11, Chain Bridge. 



The specimens from Selma, Alabama, 1880 (E. A. Schwarz) were 

 reared from the cells of Nomia fattoni Cockerell and establish this 

 female as that of sanhornii. Dr. W. H. Aslimead had these speci- 

 mens before him when he worked out his classification of the Mutil- 

 lidae, hence the generic name Nomiaephagus. This also accounts for 

 the fact that Aslunead included the genus N omiae'phagus in his key 

 to the genera based on the females, after designating sanhornii Blake 

 as the type of that genus, when apparently the female of sanhornii 

 was unknown to other hymenopterists. 



Both sexes of this species are quite variable. Many of the south- 

 ern specimens from Georgia and Alabama have the head and thorax 

 more or less reddish, while those from the north are usually black. 

 The male specimen from Gray Cloud Island, Minnesota, August 5. 

 1896, has the head and thorax reddish and also has the second, third, 

 and fourth tergites with a band of pale golden pubescence at the 

 apex, rather than the usual black. The genitalia of this specimen 

 are identical with other specimens of sanhornii and I therefore re- 

 gard it as a variant of this species. I have examined the genitalia 

 of the type and compared them with the series I have at hand, and 

 find them to be identical. The females vary in size from 8-13 mm. 



