

Fossorial Hymenoptcra of North America. 115 



easily identified by the fuscous tegulae and nervures, the entirely 

 yellow scape and base of flagellum, and finely striated propodeum. 



Crabro glauconototus, C. confertus and fumelicus which are MS. 

 names proposed by Harris in his " Catalogue" of the Insects of Mas- 

 sachusetts, cannot hereafter be regarded, as his specimens have not 

 been preserved, and he has left us no descriptions. The " C. com- 

 planhis Say," is perhaps a misprint for C. confluentus Say, as the latter 

 occurs in the Harris collection. 



PRSinKRATA. 



Crabro hilaris, Smith. 



C. hilaris, Smith. Tat. Hym. Br. Mus. iv. p. 417. (1856). 

 " St. John's Bluff, Florida, Doubleday," (Smith). 



Crabro frigidus. Smith. 



C. frigidus, Smith, Cat. Hym. Br. Mus. iv. p. 419. (1856). 



" North America," (Smith). 



Crabro collinus. Smith. 



C. collinus, Smith, Cat. Hym. Br. Mus. iv. p. 420. (1856). 

 " East Florida, Foster," (Smith). 



Crabro maculatus, Fabr. 



C. maculatus, Fabr. Ent. Syst. ii, 295, 8, Syst. Fiez. 309, 9. 



" North America," (Fabr.). 



This last species is allied to C. vagus of Europe according to Fabri- 

 cius, which resembles closely C. Q-maculatus of this country, and possi- 

 bly may be this most common species. 



[to be continued.] 



