INVESTIGATION'S ON THE MUTILLID WASPS 189 



Springs Harbor, L. I., September 13, 1921 (B. G. Anderson) ; female. Sea 



Cliff, July. 

 NoETH Dakota: Female, Devil's Lake, August 11, 1920 (T. H. Hubbell) ; 



female, Steele, August 18, 1922 (O. A. Stevens) ; female, Breien, August 21, 



1922 (O. A. Stevens). 

 South Dakota : Female, Brookings ; female. 



The form of the posterior portion of the head, the sparse black 

 pubescence of the thoracic notum, the strongly sculptured propodeum 

 and the black apical fringe of the second tergite are distinguishing 

 characters of this species. Through the kindness of Dr. A. L. Melan- 

 der I have had the opportunity of examining the type of infensa 

 Melander and Brues, and find it to be the same as this species. 



Group CASTOR 



Males black with the second abdominal segment either maculated 

 with, or entirely ferruginous, except gibhosa entirely black; second 

 abdominal sternite with a median pit densely filled with hairs, except 

 absent in gibhosa; last abdominal tergite without an apical fringe of 

 short, erect hairs, except present in hora; tegulae glabrous, impunc- 

 tate except the basal and inner lateral margins. 



These males are grouped here because they probably represent the 

 male sex of females included in the preceding group. Perrtiista may 

 prove to be the male of quadriguttata^ while i^hi'icosa^ hora, castor, 

 meracula, and gentilis are probably males of close allies to qybadri- 

 guttata. Gibhosa is probably the male of cannice'ps. When the 

 sexes of the groups quadi^iguttata and castor have been correlated 

 and more is known regarding their biology the present arrangement 

 will undoubtedly have to be revised. 



70. DASYMUTILLA PERMISTA Mickel 

 Plate 2, fig. 16 



Mutilla castor Fox, Trans. Amer. Ent. Soc, vol. 25, p. 244, 1899, male. — 

 Melander, Trans. Amer. Ent. Soc, vol. 29, p. 302, 1903, male (part). 



Dasymutilla {Dasymutilla) castor Beadlet, Trans. Amer. Ent. Soc, vol. 42, 

 p. 326, 1916, male (part). 



Dasymutilla permista Mickel, 19th Kept. St. Ent. Minn., p. 108, 1923, 

 male. — Hayes, Bull. Brooklyn Ent. Soc, vol. 19, p. 153, 1924, male. 



Holotype. — Male, Fridley sand dunes, Anoka County, Minn., July 

 28, 1922 (C. E. Mickel), in collection of University of Minnesota. 



Distribution. — Florida, Virginia, Maryland, New Jersey, Con- 

 necticut, Rhode Island, Massachusetts, New York, Pennsylvania, 

 Tennessee, Kentucky, Indiana, Illinois, Iowa, Minnesota, North 

 Dakota, South Dakota, Nebraska, Kansas, Missouri, Arkansas, 

 Mississippi, Louisiana, Texas, Oklahoma, and Colorado. (Fig. 20.) 



i 



