60 BULLETIISr 143, UNITED STATES NATIONAL MUSEUM 



Virginia: Female, Falls Church, September 1, 1915 (C. T. Greene) ; 2 females. 

 Falls Church, September 4, 1915 (C. T. Greene) ; female, Great Falls, 

 September 12. 



Wyoming: Female, Sheridan (Metz). 



The specimens examined vary in length from 7.5 to 13 mm. The 

 specimens from western States do not differ noticeably from those of 

 eastern States. In some specimens the four pale spots of the second 

 abdominal tergite are very evident, in others almost entirely lacking. 

 Occasional specimens have the apical fringe of the second tergite 

 silvery, rather than black, with the lateral extremes and a median 

 spot silvery. I have examined the type of sparsiformis Cockerell 

 and Rohwer and find it to be the same as this species. 



2. DASYMUTILLA ASOPUS (Cresson) 



Plate 1, fig. 1 



Mutilla asopus Cresson, Proc. Eut. Soc. Phila., vol. 4, p. 435, 1865, male. — 

 Blake, Trans. Amer. Ent. Soc, vol. 7, p. 244, 1879, male. — Dalle Torre, 

 Cat. Hymen., vol. 8. p. 12, 1897, male. — Fox, Trans. Amer. Ent. Soc, vol. 

 25, p. 229, 1899, male. 



Mutilla (Sphaerophthalma) asopus Blake, Trans. Amer. Ent. Soc, vol. 3, 

 p. 237, 1871, male. 



SphaeropJithalma asopus Blake, Trans. Amer. Ent. Soc, vol. 8, p. 225, 1886, 

 male. 



Ephuta (Ephuta) asopus Andr6, Gen. Ins., vol. 1, fasc. 11, p. 57, 1903, male. 



Dasymutilla asopiis Mickel, 19th Rept. State Ent. Minn., p. 102, 1923, male. 



Type. — Male, Colorado Territory, in collection of American En- 

 tomological Society of Philadelphia. 



PUsiotype. — Male, Ridgway, Colorado, July (Oslar), in collection 

 of University of Minnesota. 



Distribution. — Texas, Kansas, Nebraska, Colorado, South Dakota, 

 Minnesota, Manitoba, North Dakota, and Montana. (Fig, 2.) 



SPECIMENS EX.^MINED 



Colorado: Male, Sterling, August 3, 1899; male, Boulder, August 6, 1910 

 (Cockerell); male, Golden, August 9, 1898; male, Platte Canon, July 

 (Oslar); male, Lemar, July 10, 1899; male. Bent County, August 23 

 (Lantz) ; male, Bent Couhty, August 29 (Lantz) ; male, Berkeley, Sep- 

 tember 24, 1902 (Oslar). 



Kansas: 2 males, Riley County, July 26 (G. A. Dean) ; male, Riley County, 

 August 6 (J. B. Norton) ; male, Riley County, September 4 (Popenoe) ; 

 2 males, Riley County (J. B. Norton) ; male, Pratt County, June 27, 1911 

 (F. X. Williams) ; 2 males, Meade County, July 10, 1911 (F. X. Williams) ; 

 male, Scott County (F. X. Williams) ; male. 



Manitoba, Canada: Male, Aweme, August 2, 1907 (N. Criddle). 



Minnesota: Male, Gray Cloud Island, August 20, 1898; male, Fort Snelling, 

 July 27, 1922 (C. E. Mickel) ; male, Fridley sand dunes, Anoka County, 

 August 8, 1922 (C. W. Johnson). 



Montana: Male, Huntley, July 20, 1917. 



