INVESTIGATIONS ON THE MUTILLID WASPS 145 



ventral half of posterior face of propodeum irregularly, confiiiently 

 punctate, the dorsal half coarsely foveate and clothed with long, 

 dense, erect, ferruginous pubescence; scutellar scale prominent; a 

 transverse sinuate carina just anterior to the scutellar scale extending 

 completely across the dorsum of the thorax. 



Abdomen dark mahogany red ; first tergite with moderate, conflu- 

 ent punctures and sparse, long, black pubescence on the cephalic and 

 caudal fourths, the transverse median area glabrous, impunctate, 

 without pubescence ; apical fringe of first tergite black ; second tergite 

 bright ferruginous, with moderate, elongate, confluent punctures, the 

 extreme anterior margin glabrous, impunctate. clothed with long, 

 dense, erect, ferruginous pubescence, except laterally with sparse, 

 pale pubescence and the apical fringe whitish, narrowly interrupted 

 medially with black; third tergite closely, confluently punctate, the 

 pubescence laterally mostly whitish and recumbent with a few golden 

 hairs intermixed, scattered, erect, black hairs throughout, the pubes- 

 cence of the median area black, and the apical fringe whitish, 

 broadly interrupted medially with black; fourth tergite with mod- 

 erate, distinct punctures, lateral thirds of tergite with whitish recum- 

 bent pubescence and scattered, erect black hairs, the pubescene of the 

 median third black; fifth tergite with distinct punctures, the pubes- 

 cence mostly black, narrowly whitish at the sides; pygidium dis- 

 tinctly, longitudinally striate; anterior half of first sternite with a 

 prominent, longitudinal carina, the latter obsolete on the posterior 

 half, the sternite with large, contiguous punctures and sparse, erect, 

 pale pubescence; second sternite with small, very sparse punctures 

 medially, the punctures becoming coarse and almost contiguous to- 

 ward the lateral and caudal margins, sparsely clothed with pale pu- 

 bescence, and with a thick apical fringe of whitish pubescence; 

 stemites 3-5 contiguously punctured subapically, 3 and 4 with apical 

 fringes of whitish pubescence, 5 with an apical fringe of black pubes- 

 cence; ultimate sternite punctate and with black pubescence. 



Legs very dark mahogany red, sparsely clothed with long, black 

 hairs. 



All oti/pe.— Female, Durango. Colo., July 28, 1900 (Oslar), in col- 

 lection of American Entomological Society of Philadelphia. 



SPECIMENS EXAMINED 



Aeizona: Female, Douglas, August (Snow) ; male, Wilcox, July 31, 1909 (A. K. 

 Fisher) ; male, Wilcox, July 31, 1909; female. Post Creek Canyon,, Pinaleno 

 Mountains, Fort Grant, July 15-18, 1917 ; male, female, Fort Grant, Pina- 

 leno Mountains, July 15-19, 1917; female. Fort Grant, July 14, 1917; 

 female, Huacliuca Mountains, July 16; female, Tucson, July 12, 1924 (A. A. 

 Nichol) ; 2 females, Santa Rita Mountains, July (Snow) ; 5 females, Oak 

 Creek Canyon, July (Snow); female, Humphrey's Peak (Snow); female, 



