AMERICAN MUTILLID^. 247 



(Cockerell) ; Arizona: Phoenix (H. G. Griffith); California: River. 

 side (Wickhara). The latter specimen is the larger and has the 

 pubescence of upper part of body quite pale in comparison to 

 typical examples. 



Mr. Cockerell has suggested the possibility of S. Foxii being the 

 male of heterochroa. 



81. Mutilla phcehix u. sp. 



9. — Ferruginous, sides of thorax fuscous; head and thorax above with coarse, 

 dense, dirty- white pubescence, that on thorax posteriorly sparse and black ; legs 

 with pale pubescence; second segment apically, and the remaining segments 

 with coarse, dirty-white pubescence; a patch of black hair on third dorsal; 

 head about as wide as thorax, the latter hexagonal, with coarse reticulations on 

 upper part of posterior surface; second dorsal with large, separated punctures, 

 nude, except for the hair on apex ; punctures of second ventral sparse, but much 

 feebler than those of the dorsal surface; pygidium black, rugose. Length 7 mm. 



Arizona: Phoenix (H. G. Griffith). Two specimens. 



82. IVliitilla Ncabra Fox. 



Sphxrophthahna scaber Fox, Proc. Cal. Acad. (2), iv, 94, 9. 1894. 

 Mutilla scabrn Dalla Torre, Catal. Hym., viii, 84, J , 1897. 



Lower California. 



83. 9Iiitilla Diigesii_Ckll. and Cas. 



Sphxrophthalma Dagesii Cockerell and Casad, Ent. News, v, 294, 9 • 



Mexico: Guanajuato (Ckll. and Cas.) ; Texas: Big Springs 

 (Wickham). 



84. Mutilla progiie n. sp. 



Sphxrophthalma ocracea Blake, Tr. Am. Ent. Soc, xiii, 228, 9 (non % ), 1886. 

 9 • — Black, head, thorax and abdomen above with tolerably long, shaggy, 

 ochraceous pubescence; other pubescence black; head about as wide as thorax, 

 cribrose with coarse punctures; first joint of flagellum about as long as two fol. 

 lowing united; thorax hexagonal, coarsely punctured ; ventral carina of first 

 segment prominently arched medially ; second ventral with large, scattered 

 punctures, with a small prominence medially near the base ; pygidium finely 

 rugose. Length 9-12 mm. 



Occurs from New Mexico to California. This species has been 

 described as the female of ochracea, which I do not believe it to be. 



85. lUntilla venifica Blake. 



Sphxrophthalma venifica Blake, Tr. Am. Ent. Soc, xiii, 210, 9 , 1886. 



California : Santa Barbara. Only the unique type seen. The 

 pubescence is quite sparse, the specimen having a rubbed appear- 

 ance. 



TKANS. AM. ENT. SOC. XXV. FEBRUARY, 1899. 



