18 PROCEEDINGS OF THE NATIONAL MUSEUM. vol.64. 



of tergite; tercrites 3-5 with confluent punctures, the latter about 

 lialf the size of those of the second tergite; tergite 3 with sparse, 

 silvery pubescence throughout; tergite 4 with lateral thirds silvery 

 pubescent, the median third black pubescent; tergite 5 black pu- 

 bescent, except the lateral margins silvery pubescent ; tergite 6 golden 

 pubescent: pygidial area distinct, irregularly rugose; sternite 2 with 

 large, well-separated punctures; sternites 3-6 with close, confluent 

 punctures; all the sternites beneath with long, silvery pubescence. 



Legs ferruginous, with sparse, silvery pubescence. 



Holotj/pe.— Female, July 8-20, 1916, Sabino Basin, St. Gatalina 

 Mountains, Arizona, in collection of American Museum, of Natural 

 History. 



This species is not closely related to any other of the forms treated 

 herein. It will likely be found represented in the Mexican fauna. 

 It may be easily recognized by the structure of the head at the 

 sides beneath. 



13. PSEUDOMETHOCA DONAE-ANAE (Cockerell and Fox). 



1897. Sphaerophthahna donae-anae Cockerei.l and Fox. Pi-oc. Acad. Nat. 



Sci. Phila., vol. 49. p. 137. female. 

 1899. Mutilla donae-anae Fox. Trans. Amer. Ent. Soc, vol. 25, p. 224, 



female. 

 1903. Pseudomethocaf donae-an<te Andr6, Gen. Tns., vol. 1, fasc. 11, p. 28, 



female. 

 1903. Mutilla donae-anae :Mei.ander, Trans. Amer. Ent. Soc, vol. 29, p. 294, 

 female. 

 Type. — Female, New Mexico, in collection of American Entomolog- 

 ical Society of Philadelphia. 



Specimei-is examined. — Arizona : Female, October 9. 1903, Florence 

 (Biederman). California: Female, August 16, Calexico. 



This species may be easily recognized by the prominent, rugose 

 tubercle of the propodeum. I have examined the type specimen and 

 find that this tubercle is not a scutellar scale as suggested by Fox 

 (1899) but is a part of the propodeum. 



14. PSEUDOMETHOCA WICKHAMI (Cockerell and Casad). 



1895. Sphaerophthalma wickhami Cockerelx and Casad, Trans. Amer. Ent 



Soc. vol. 22, p. 297, female. 

 1899. Mutilla wicklwmi Fox, Trans. Amer. Ent. Soc, vol. 25, p. 224, 



female. 

 1903. Pseudomethocaf uickhami Andr^, Gen. Ins., vol. 1, fasc. 11, p. 28, 



female. 

 1903. Mutilla wickhami Melander, Trans. Amer. Ent. Soc, vol. 29, p. 294, 



female. 



Type — Female, Texas, in collection of American Entomological 

 Society of Philadelphia. 

 Specimens examined — Texas: Female, Fedor. 



