INVESTIGATIONS ON" THE MUTELLID WASPS 



61 



Nebraska: Male, Omaha, July 7, 1914 (L. T. Williams); male, South Bend, 

 November 3, 1894; male, Cedar Bluffs, September 27, 1913 (G. W. Dem- 

 ing) ; male. Sand Hills, July; 2 males. Sand Hills, September; male, Halsey, 

 August 25, 1925 (R. W. Dawson) ; male, Scottsbluff, August 5, 1923 

 (Leonard Worley) ; male, Mitchell, August 5, 1914 (L. M. Gates) ; male, 

 Mitchell, August 8, 1915 (E. M. Partridge) ; male, Mitchell, September 8, 

 1915 (E. M. Partridge) ; male, Glen, August 14, 1906 (P. R. Jones) ; male, 

 Glen, August, 1905; male, Monroe Canyon, Sioux County, August 20, 1908 

 (R. W. Dawson) ; male, Monroe Canyon, Sioux County, August 24, 1908 

 (J. T. Zimmer) ; male, Bad Lands, Sioux County, August 10, 1908 (C. H. 

 Gable) ; male. Pine Ridge. 



North Dakota: 2 males, Sheldon, August 28, 1920 (O. A. Stevens). 



South Dakota: Male, Newell, July 27, 1923 (H. C. Severin) ; male, Rapid 

 City, September 6, 1923 (H. C. Severin) ; male, Hot Springs, July 11, 1924. 



Texas: Male, Colorado County, June 5, 1922 (Grace Olive Wiley). 



rig. 2. Distri'bution of Da3:,TT:itillf'. asor-as (Cresson). Y / / /\ 

 DFr-rnitilla hector (Plaice). KX'XXJ 



Dasymutiiia bexar (BIpJte). 



Fox (1899) suggests that this and the two following species may 

 be only forms of one species, rather than three distinct species. There 

 is no additional evidence at present to lend weight to either view. 

 HarTnonia is found throughout the range of all three species, which 

 indicates that possibly Fox's view is correct. Harmonia^ however, 

 has not been definitely associated with any of these three males. 



In 1925 Charles H. Hicks, of Boulder, Colorado, sent me a speci- 

 men of male Mutillid which he had collected from the cell of a bee, 

 Dianthidium species. Only the abdomen remained, but it was pos- 

 sible to identify the specimen as either asopus or hector by the 

 genitalia and the characteristic second abdominal sternite. It there- 

 fore appears that this species, or possibly the following one, is 

 parasitic on Diamthidiwrn species. 



