250 BULLETIN 143, UNITED STATES UTATIONAL MUSEUM 



30, 1912 (F. X. Williams) ; female, Norton County, August 23, 1912 (F. X. 

 Williams) ; 3 females, Graham County, August 16, 1912 (F. X. Wil- 

 liams) ; 6 females, Clarke County, May (F. H. Snow) ; 10 females, Clark 

 County, June (F. H, Snow) ; female, Meade County, June 27 (Lantz) ; 2 

 females, Meade County, July 10, 1911 (F. X. Williams) ; female, Meade 

 County; female, Grainfield, September 23 (Lantz); 4 females, Seward 

 County, August 16, 1911 (F. X. Williams) ; 2 females, Seward County, 

 August 18, 1911 (F. X. Williams) ; 9 females. Grant County, July 23, 1911 

 (F. X. Williams) ; 3 females. Grant County, August 27, 1911 (F. X. Wil- 

 liams) ; 2 females, Logan County (F. X. Williams) ; 3 females, Morton 

 County, June (F. H. Snow) ; 13 females, Morton County, August 5, 1911 

 (F. X. Williams) ; 4 females, Morton County (F. H. Snow) ; 9 females, 

 Stanton County, July 30, 1911 (F. X. Williams) ; 2 females, Hamilton 

 County, June, 1902 (F. H. Snow) ; 5 females, Hamilton County (F. H. 

 Snow) ; 4 females, Greeley County (F. X. Williams) ; female, Wallace 

 County, July 7 ; female, Wallace County, July 9 ; 4 females, Wallace County 

 (F. H. Snow) ; 2 females (Snow). 

 Nebraska: Female, Halsey, August 9, 1912 (J. T. Zimmer) ; female, Halsey, 

 August 13, 1920 (C. B. Philip) ; female, Halsey, August 16, 1925 (R W. 

 Dawson) ; female, Halsey, August 24, 1911 (J. T. Zimmer) ; female. Sand 

 Hills, July ; female, Imperial, July 2, 1911 (J. T. Zimmer) ; female, Benkel- 

 man, June 1 (Lantz) ; 2 females, Benkelman, October 5 (Lantz) ; female, 

 Haigler, August 10, 1901 (L. Bruner) ; 3 females, Haigler, August 10, 1901 

 (M. A. Carriker, jr.) ; female, Haigler, August 14, 1909 (C. H. Gable). 

 Oklahoma: Female, Payne County, June 21, 1925 (W. J. Brown); female, 

 Payne County, July 5, 1925 (W. J. Brown) ; female, Payne County, Sep- 

 tember 12, 1923 (W. J. Brown). 

 South Dakota: 2 females. Hot Springs, July 7, 1924. 



Texas: Female, Jacksonville, June 5, 1919 (Paddock); female, Athens, June 

 26, 1907 (W. W. Tothers) ; female, Palestine, August 23, 1907 (W. W. 

 Tothers) ; female, College Station, July 6, 1918 (H. J. Reinhard) ; female, 

 Calvert (G. H. Harris) ; female, Hempstead, June 16, 1907 (R. A. Cush- 

 man) ; female, Rosser, September 23, 1905 (C. R. Jones) ; female, Terrell, 

 May 9, 1904. 

 This species is very closely related to gorgon, the principle differ- 

 ence being in the color of the pubescence of the head and thorax. 

 Leda was described by Blake from a unique specimen taken in Dallas 

 County, Texas. This specimen formed part of the Boll collection 

 which was sent to Blake for study by the Museum of Comparative 

 Zoology at Cambridge, Massachusetts. This unique specimen of 

 leda was returned to the Museum of Comparative Zoology and is now 

 in their collections. The specimens placed here are identical with 

 this type. There is a specimen labeled " Texas " in the collection of 

 the American Entomological Society of Philadelphia designated as 

 the type of leda. This specimen is an example of Mugii and neither 

 answers to Blake's description of the species nor satisfies the require- 

 ments of the statement regarding the type locality. It can therefore 

 not be considered as type material. I have also examined the type 

 of 'progrwides Viereck and find it to be the same as leda. The variety 



