272 WILLIAM J. FOX. 



It is doubtful, in my mind, if the species recognized as ruja by 

 Blake is really that species, but the original description is too 

 meagre to permit a positive conclusion in the matter. 



169. 9Iutill» euterpe Blake. 



Mutilla enterpe Blake, 1. c, vii, p. 249, 9 • 1879. 



Florida. Only the unique type seen, which was collected at 

 Enterprise, Florida, in May. 



170. 9Iutilla b»rbata u. sp. 



%. — Ferruginous, flagellum, legs and segments 3 and following black; scape 

 yellowish, beneath with long, white hairs ; pubescence griseus ; flagellum acumi- 

 nate, the l)asal joint broad and flat; first segment with large, separated puncture's, 

 as is also the second dorsal at base, the punctures becoming sparser medially and 

 closer at apex ; wMugs suhfuscous, the superiors crossed by broad, whitish yellow 

 fascia medially. Length 8 mm. 



Missouri : Ripley County (P. J. Smith \ One specimen sent me 

 by the Rev. Rich'd Kraus, of St. Vincent Abbey, Pennsylvania. 



Group scrupea (^ Mutilla Blake, pt.). 



Eyes short and broad, facetted, emarginate on inner margin in 

 male. Mandibles bidentate, not emarginate or bearing a process 

 outwardly. Abdominal segment 1 distinctly narrower at apex than 

 second, usually cylindrical. Thorax of female ovate. 



The marginal cell tends rather to truncate, and the number of 

 subraarginal cells varies from two to three. Only one species, pute- . 

 old, is known in the female sex. 



MALES. 



Entirely black scriipea Say. 



More or less red 2. 



2. Head and thorax black, abdomen red copaiio Blake. 



Ferruginous, legs and antennse black Slossonse n. sp. 



171. Mutilla scriipea Say. 



Mutilla scrupea Say, Host. Jour. Nat. Hist., i, p. 297, 1836, % ; LeConte Ed. 



Say's Ent.. ii. p. 740, 1 , 1859. 

 Mutilla scrupea Blake, 1. c, p. 230, % , 1871. 

 3Iatilla gracilis Blake (not Smith), ibid, p. 231, % , 1871. 



Connecticut; Delaware; Texas; Colorado; Montana ; California. 

 The western specimens are by far the larger, but I am unable to 

 detect any satisfiictory character entitling them to specific rank_ 

 These are the gracilis Blake (not Smith) ; the true gracilis inhabits 

 Mexico, and has a more cylindrical first abdominal segment. 



