INVESTIGATIONS ON THE MUTILLID WASPS 169 



SPECIMENS EXAMINED 



Maeyland: Female, Plummer Island, July 4, 1921. 



Mississippi: Female, Agricultural College, March 29, 1915 (F. E. Lee); 

 female, Agricultural College, May 18, 1921 (J. A. Harris) ; female, Agri- 

 cultural College, June 5, 1922 (J. M. Wallace) ; female, Forkville, July, 

 1918 (Jas. H. Price). 



New Yobk: Female, Yaphank, August 29, 1916 (W. T. Davis). 



NoETH Carolina: Female, Raleigh, April. 



Tennessee: Female, Allardt, Fentress county, August 19, 1922 (T. H. 

 Hubbell). 



Vibginia: Female, Falls Church, August 20, 1913 (C. T. Greene) ; female, Veitch, 

 September 23, 1913 (C. T. Greene). 



West Vieginia: Female, Wirt county. 



Easily distinguished by the conspicuous, sharply defined spots of 

 the second tergite and the black apical fringes of the first, second 

 and third tergite. 



56. DASYMUTILLA ATRIFIMBRIATA, new species 



Female. — Head and thorax ferruginous, the abdomen black; the 

 second tergite maculated with two small basal and two large apical 

 pale spots. Much like quadriguttata Say but the apical fringes of 

 the first, second and third tergites black. Length, 10 mm. 



Head ferruginous; the front and vertex clothed with sparse, re- 

 cumbent, golden pubescence and a few scattered, long, erect hairs; 

 the scape and genae with sparse, recumbent silvery pubescence; 

 mandibles acute at the apex, unidentate within on the inner margin ; 

 cephalic face of clypeus glabrous, impunctate, the caudal half very 

 finely and closely punctate medially; clypeal fringe of long, dark 

 golden hairs; scape very closely punctate; first joint of flagellum 

 about one and one-half times as long as it is broad at the apex; 

 antenna! scrobes not defined by a carina above ; front coarsely, con- 

 fluently punctate; vertex closely punctate but not as coarsely 

 sculptured as the front; postero-lateral angles of the head with an 

 oblique, elongate, subparallel-sided tubercle directed toward the eyes, 

 the greatest distance between the tubercles slightly less than the 

 least distance between the eyes; genae closely punctured like the 

 vertex ; relative widths of head and thorax, 6.5-7. 



Thorax ferruginous ; dorsum of thorax closely, confluently rugoso- 

 punctate, clothed with sparse, recumbent, golden pubescence; pro- 

 pleura irregularly punctate, the margins with large, deep punctures, 

 the disk with minute, fine punctures; anterior half of mesopleura 

 with close, very fine punctures, the posterior half with large, con- 

 fluent punctures, these two punctate areas encroaching upon one 

 another; ventral half of metapleura with large, close punctures, 



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