72 BULLETIN" 143, UNITED STATES NATIONAL MUSEUM 



males, 2 males, Logan ; 2 females, Smithfield, June 12 ; female, Wellsville, 

 July 29, 1903; female, Cache Junction, June 3, 1912 (H. R. Hagan) ; 2 

 females, southern Utah ; male. 

 Wyoming: Female, Hecla (Clason) ; female, Laramie, August 5, 1920 (Henry 

 Skinner) ; 2 males, Laramie Mountains, August, 1895 ; male, Carbon 

 County; 2 females, 2 males, Douglas; 2 females, Worlaud, August 1, 1911 

 (L. Bruner) ; 2 females, 40 miles north of Lusk, July, 1895; female, Crow 

 Heart Butte, August 27, 1896 (R. P. Currie) ; female, Dry Creek, August 28, 

 1896 (R. P. Currie) ; female, Yellowstone Park, August, 1906 (H. Skinner) ; 

 female. 



Both the males and females of this species vary in length from 

 8 to 14 mm., and in color of pubescence from pale yellow to crimson. 

 The variations either in size or color are not confined to any particu- 

 lar geographical area, but occur uniformly throughout the entire 

 range of the species. 



The female has heretofore been known as californica^ based on 

 Cresson's identification in 1865. Cresson also suggested that fulvo- 

 hirta was probably the male of calif ornica. This female is certainly 

 not calif ornica, since it neither agrees with Radoskowski's descrip- 

 tion and figure of that species nor, with one exception, is it repre- 

 sented by any specimens from California, the locality given by 

 Radoskowski for his species. 



In August, 1925, Dr. Francis Long sent me two specimens of 

 Mutillidae, a male and a female which had been reared from the cells 

 of Anthophora occidentalis. They proved to be the two sexes of 

 ful'vohirta. Later, in November, 1925, Charles H. Hicks sent me the 

 remains of two specimens of Mutillidae, a male and female, which 

 had been collected from the cells of Anthophora occidentalis. These 

 also proved to be fulvohirta. On the basis of this biological evidence, 

 and from the fact that the geographical distribution of the male and 

 female under consideration here coincide, I have united these as the 

 two sexes of one species. 



I have examined the type of townsendi Cockerell and find it to be 

 identical with the type of fulvohirta except in the color of the 

 pubescence, which a large series of specimens has shown to be quite 

 variable. Euchroa Cockerell is the female form of fulvohirta with 

 the pubescence of a deep crimson color. Specimens with the 

 pubescence colored thus occur throughout the entire range. 



The male of this species is characterized by a wide median longi- 

 tudinal row of short hairs on the second abdominal sternite, a char- 

 acter not mentioned in the original description. This row of hairs is 

 slightly basad on the median transverse line of the sternite. 



10. DASYMUTILLA HOMOLE, new species 



Female. — Very dark mahogany red, almost black ; the vertex, dor- 

 sum of thorax, and disk of second abdominal tergite clothed with 



