INVESTIGATIONS ON THE MUTILLID WASPS 97 



The type of this species has been examined and found to agree with 

 the specimens placed here. This species varies considerably in the 

 color of the head and thorax, and in the color of the pubescence on 

 the second, third, and fourth abdominal tergites. Some specimens 

 from Texas and most s]3ecimens from Kansas have the head and 

 thorax ferruginous rather than dark or almost black. The apical 

 fringes of the first and second abdominal tergites are entirely pale, 

 or silvery, in all the specimens at hand. Specimens from Texas have 

 the pubescence on abdominal tergites 3 and 4 mostly black, but speci- 

 mens from Kansas have the black pubescence reduced to a small spot 

 on the median area of tergite three; and one specimen even has the 

 pubescence of the apical tergites entirely pale. The form of the 

 ventral carina is like that figured by Melander (1903), and all the 

 specimens agree in form and sculpture. The specimens vary in 

 length from 8 to 12 mm. Blake's species requires a new name since 

 texana is preoccupied by Cresson (1875), see page 148. 



24. DASYMUTILLA MACRA (Cresson) 



Plate 1, fig. 7 



Mutilla macra Ceesson, Proc. Ent. Soc. Phila., vol. 4, p. 429, 1865, male. — 



Blake, Trans. Arner. Ent. Soc, vol. 7, p. 244, 1879, male. — Dalle Tobee, 



Cat. Hymen., vol. 8, p. 56, 1897, male. — Fox. Trans. Amer. Ent. Soc, vol. 



25, p. 244, 1899, male (part). — MEa:js.NDEB, Trans. Amer. Ent. Soc, vol. 



29, p. 302, 1903, male (part). 

 Mutilla {Sphaerophthalma} macra Blake, Trans. Amer. Ent. Soc, vol. 3, 



p. 238, 1871, male. 

 Sphacrophthalma hispida Blake, Trans. Amer. Ent. Soc, vol. 13, p. 226, 



1886, male. 

 Sphacrophthalma macra Blake, Trans. Amer. Ent. Soc, vol. 13, p. 230, 



1886, male. 

 Mutilla hispida Dalle Torre, Cat. Hymen., vol. 8, p. 47, 1897, male. 

 Ephuta {Ephuta) macra Andr^, Gen. Ins., vol. 1, fasc 11, p. 61, 1903, male. 



Ti/pe. — Male, Colorado Territory, in collection of American En- 

 tomological Society of Philadelphia. The type of hispida is in the 

 collection of the American Entomological Society of Philadelphia. 



Plesiotype. — Male, White Eocks, Boulder County, Colorado, 

 August 13 (Cockerell), in collection of University of Minnesota. 



Distribution. — Missouri, Arkansas, Texas, New Mexico, Colorado, 

 Kansas, Nebraska, Iowa, South Dakota, North Dakota, Wyoming, 

 and Alberta, Canada. (Fig, 7.) 



SPECIMENS EXAMINED 



Alberta, Canada: Male, Medicine Hat, August 20, 1916 (Sladen). 



Arkansas : Male. Pine Bluffs. 



Colorado : Male, Fort Collins, August, 1899 ; male, Denver, July 12, 1902 ; male, 

 Denver, August, 1912; male, Denver, September 1, 1906 (Oslar) ; 2 males, 

 Platte Caiion, July 1; male, Platte Cailon, July (Oslar) ; 4 males, Turkey 

 Creek Caiion, June (Oslar) ; 4 males, Turkey Creek Canon, July (Oslar) ; 

 male, Clear Creek (Oslar) ; 3 males, Silverton, August (Oslar). 



