INVESTIGATIONS ON THE MUTILLID WASPS 75 



cence ; sternites 2-4 with a very thin apical fringe of orange-yellow 

 pubescence; first segment of abdomen subsessile; first tergite with 

 large, close punctures laterally and apically, and with a thin apical 

 fringe of orange-yellow pubescence; second tergite with moderate, 

 separated punctures, the punctures larger and closer at the base and 

 sides; tergites 3-6 with moderate, contiguous punctures; ultimate 

 tergite without an apical fringe of hairs, the pygidial area glabrous, 

 impunctate; first sternite punctate and with a median longitudinal 

 carina; second sternite with large, scattered punctures, the latter 

 very sparse medially, without any median pit or longitudinal row 

 of hairs simulating a carina ; sternites 3-6 with scattered punctures 

 near the apical margin; postero-lateral angles of ultimate sternite 

 angulate or dentate, and the apical margin angularly produced 

 medially. 



Legs black, sparsely clothed with long, black pubescence ; calcaria 



black. 



Wings dark fuliginous; cell 2nd E^ + Ra somewhat rounded at the 

 apex; cell R^ almost obsolete; vein M3+4 received by cell R5 very 

 close to the base, about one-fifth the distance from the base to the 

 apex ; veins r-m and R5 widely separated on vein r. 



Holotyjye.—MdlQ, Pecos River, Sheffield, Texas, July 4, 1917, in 

 collection of Cornell University. 



This species is very closely related to fulvohirta Cresson. It differs 

 from the latter in lacking the longitudinal row of hairs on the second 

 sternite and in having the head and thorax clothed entirely with 

 black pubescence. The form of the head, thorax and first abdominal 

 segment is identical with that of fulvohirta. The genitalia are like 

 those of fulvohirta and are therefore not figured. 



12. DASYMUTILLA COTULLA, new species 



il/aZg.— Head and thorax black, clothed with black pubescence; 

 abdomen black, apical half of tergite two, and the following tergites 

 clothed with fulvous pubescence ; first abdominal segment subsessile ; 

 first segment of flagellum distinctly shorter than the second; second 

 sternite with a deep, median pit, closely filled with hairs. Length 

 13 mm. 



Head black, clothed with long, erect and recumbent,, black hairs; 

 mandibles tridentate ; clypeus strongly bidentate medially, the apical 

 half, closely and confluently punctate ; scape sparsely punctured and 

 clothed with coarse, black hairs ; first segment of flagellum distinctly 

 shorter than the second, antennal scrobes distinctly carinate above; 

 front and vertex coarsely and confluently punctate ; genae with small, 

 separated punctures; relative width of head and thorax, 6.5-8. 



