192 BULLETIN 143, UNITED STATES NATIONAL MUSEUM 



South Dakota: 2 males, Yankton, August 6, 1923 (H. C. Severin) ; 3 males, 

 Ravinia, August 10, 1922 (C. N. Ainslie) ; male, Fairfax, August 8, 1923 

 (H. C. Severin) ; male, Bruce, August 24, 1923 (H. C. Severin) ; male, 

 Bigstone, August 20. 1924 (H. C. Severin) ; male, Philip, September 3, 

 1924 (H. C. Severin) ; male, Rapid City, September 9, 1923 (H. C. Severin) ; 

 male, Martin, September 3, 1924 (H. C. Severin) ; male. Lake Albert, 

 August 22, 1923 (H. C. Severin) ; male. 



Tennessee: Male, AUardt, Fentress County, August 16, 1922 (T. H, Hubbell). 



Texas: 2 males, Victoria, June 25, 1917; male, Wharton, June 24, 1917; 4 

 males, Richmond, June 22, 1917; male, Beaumont, August, 1918 (G. E. 

 Riley); male, Lee County, June, 1908; male, Lee County, September 

 11, 1905; male, Fedor ; male, southeast Texas, summer, 1918 (W. W. De- 

 Cell) ; male. Trinity, July 24, 1907 (W. W. Yothers) ; male, Calvert, June 

 27, 1907 (F. C. Bishopp) ; 2 males, Rosser, June 28, 1905 (C. R. Jones) ; 

 male, 



Virginia : 2 males. Falls Church, August 7 ; male. 



Pei^nista is one of the species placed under the name castor in 

 collections. The type of castor has been examined and found to be 

 distinct from this species. It is possible that the material placed here 

 under ■permista represents two distinct species. The puncturation of 

 the second abdominal tergite varies a great deal. In some specimens 

 the punctures are large and almost contiguous, while in others the 

 punctures are fine and well separated. This difference is not tangi- 

 ble enough, except in extreme cases, to be used as a basis for specific 

 differences, and since no other evidence could be found to establish 

 the presence of more than one species, the type material and the 

 specimens listed here are regarded as a single species for the present. 

 When quantitative data on the life history and host relationships can 

 be procured the question as to whether one or more species are present 

 here can probably be settled. Hayes (1924) has reared this species 

 from the cocoons of Elis quinquecincta Fabricius. The specimens 

 vary in length from 8 mm. to 15 mm. 



71. DASYMUTILLA RUBRICOSA, new species 



Plate 2, fig. 10 



Male. — Black, with the first and second abdominal segments red; 

 sometimes the thorax and propodeum more or less reddish; lateral 

 margins of second tergite glabrous, impunctate, bare. Length, 

 14 mm. 



Head black, sparsely clothed with long, erect, black pubescence; 

 mandibles tridentate at the apex; clypeus bidentate medially on the 

 cephalic margin, coarsely rugoso-punctate, scape bicarinate beneath, 

 rugosely punctate throughout; first segment of flagellum five-sixths 

 as long as the second; antennal scrobes carinate above; front 



