IlSrVESTIGATIOlSrS ON THE MUTILLID WASPS 215 



Minnesota: Male, Fridley sand dunes, Anoka County, July 11, 1924 (R. W. 



Dawson). 

 Nebraska: 6 males, Ogallala, June 24, 1913 (R. W. Dawson); male, Sioux 



County, July. 

 NoBTH Dakota: 2 males, Medora, August 3, 1923 (O. A. Stevens). 



I have examined the types of eximia Blake and houlderensis 

 Eohwer and find them to be the same as this species. This species is 

 easily recognizable by the ferruginous abdomen and grayish pubes- 

 cence of the head, thorax, and apical abdominal segments. The speci- 

 mens from Minnesota and North Dakota have the ferruginous color 

 of the propodeum and first abdominal segment much reduced so that 

 both are almost entirely black. The specimens vary in size from 5.5 

 to 9 mm. This may be the male of caneo (Blake). 



85. DASYMUTILLA MACILENTA (Blake) 

 Plate 3, fig. 17 



Mutilla (Sphaerophfhalma) macilcnta Blake, Trans. Amer. Ent. Soc, vol. 



3. p. 239, 1871, male. 

 Mutilla macilcnta Blake, Trans. Amer. Ent. Soc, vol. 7, p. 244, 1879, 



Male. — Dalle Torre. Cat. Hymen., vol. 8, p. 56, 1897, male. — Fox, Ent. 



News, vol. 11, p. 401, 1900, male. 

 SphacropMhalma macilenta Blake, Trans. Amer. Ent. Soc, vol. 13, p. 231, 



1886, male. 

 Ephuta (Ephuta) macilenta Andre, Gen. Ins., vol. 1, fasc 11, p. 61, 1903. 



male. 



Type. — Male, Texas, in collection of Entomological Society of 

 Philadelphia. 



Plesiotype. — Male, Spring Creek, Decatur County, Georgia, in col- 

 lection of Cornell University. 



Distribution. — Texas?, Florida, Georgia, Alabama. 



SPECIMEN.? EXAMINED 



Alabama : Male. 



Florida: Male, Alachua County, April 29, 1923 (Alexander Walker). 



Georgia: 2 males, Spring Creek, Decatur County, July 16-29, 1912. 



The above specimens have been compared with the type and found 

 to be identical. This species is closely related to monticola and 

 canella. Monticola is distinguished by having the abdomen entirely 

 ferruginous, while macilenta has the apical segments black. It 

 differs from caneJla in having the propodeum much less coarsely 

 sculptured. All three species have the pit on the second abdominal 

 sternite. It is questionable whether the locality label on the type 

 is correct. 



86. DASYMUTILLA POLIA, new species 



Male. — Head and thorax blacK", clothed with silvery gray pu- 

 bescence, except the mesonotum clothed with dark, almost black 



55287—28 15 



