INVESTIGATIONS ON THE MUTILLID WASPS 183 



with erect, scattered dark hairs intermixed ; the posterior margin of 

 the head with a pair of lateral, glabrous tubercles; genae glabrous, 

 with large punctures usually separated, not nearly as coarsely sculp- 

 tured as the front and vertex; relative widths of head and thorax, 

 6.8-8. 



Thorax very dark mahogany red, almost black; dorsum coarsely 

 foveate, clothed with long, erect and recumbent, yellow pubescence; 

 propleura with rather close, moderate punctures, clothed with sparse, 

 black pubescence; anterior half of mesopleura glabrous, with small, 

 shallow, more or less indistinct punctures, clothed with sparse, black 

 pubescence; posterior half of mesopleura foveate, clothed with very 

 long, erect black pubescence; metapleura glabrous, impunctate 

 dorsally, indistinctly punctured ventrally, except a few large, deep 

 punctures at the extreme base, clothed with sparse, black pubescence ; 

 sides of propodeum with mostly indistinct punctures, the posterior 

 margin with foveate, close punctures, sparsely clothed with black 

 pubescence; posterior face of propodeum foveately punctured, the 

 dorsal half clothed with very long, erect, very dense, black pubescence; 

 scutellar scale very prominent. 



Abdomen very dark mahogany red, almost black; first segment 

 short, subsessile with the second; first tergite punctured throughout, 

 clothed with long, erect, black pubescence; second tergite punctured 

 throughout, the punctures at the base and sides stronger and more 

 distinct than those of the disk; tergites 3-5 indistinctly punctate; 

 tergites 2-5 clothed with long, dense, erect and recumbent yellow 

 pubescence ; the anterior margin of the area of yellow pubescence on 

 the second tergite cordate in outline; pygidium irregularly rugose; 

 first sternite with a median longitudinal keel on the anterior half; 

 second sternite with moderate, usually well-separated punctures; 

 sternites 3-5 indistinctly punctate ; sternites 2-5 clothed with sparse, 

 erect, black pubescence, and each with an apical fringe of thick 

 pubescence, the median portion of the fringe black, lateral portions 

 yellow. 



Legs black, clothed with long, black pubescence. 



Plesiofype. — Female, Dyerville, Calif., in collection of University 

 of Minnesota. 



Distribution. — California and Utah. 



SPECIMENS EXAMINED 



Caufornia: Female, La Jolla, Sau Diego County, August IS, 1919 (H. Klotz) ; 

 female, La Jolla, San Diego County, August 26, 1919 (II. Klotz) ; female, 

 La Jolla, San Diego County, August 27, 1919 (H. Klotz) : female. San 

 Diego, July 2, 1918 (J. D. Timkins) ; female, Laguna : 2 females, Los 

 Angeles County, September; 7 females, Ix)s Angeles County; female. San 



55287—28 13 



