226 E. T. CRESSON. 



Aljsoii texauns, n. sp. 



%. — Black, shining, clothed with a pale subsericeous pubescence: face 

 silvery; tips of mandibles ferruginous; scape whitish beneath, flagellum fer- 

 ruginous beneath, apical joint curved and hooked; metathorax elongate, 

 truncate behind, with lateral angles prominent, basal enclosed space elongate 

 and rugose, on each side of space the surface is transversely striated to lateral 

 declivity; tegulae brown; wings hyaline, apex dusky, a faint cloud beneath 

 tip of stigma; four anterior tibise and the posterior pair slightly at base, ferru- 

 ginous; abdomen smooth, shining, the first segment, except base, and the sec- 

 ond entirely rufo-ferruginous; apex with two long slender setse. Length .25 

 inch. 



One specimen. (Coll. Gr. W. Belfrage.) 



CRABRONID^E. 



Trypoxylou polittim. 



Trypoxylon j)olitus, Say, Bost. Journ. Nat. Hist, i., p. 373. 

 Four % 9 specimens. (Bollj Heiligbrodt.) 



Trypoxylon clavatuni. 



Try-poxylon clavatus, Say, Bost. Journ. Nat. Hist, i., p. 374. 

 Two specimens. (Boll.) 



Trypoxyloii frigidiim. 



Trypoxylon frigidum, Smith, Brit. Mus. Cat. iv,, p. 380. 



One % specimen. (Belfrage.) 



Trypoxylon texeuse. 



Trypoxylon texense, Sauss. Hymen. Novara-Exped. p. 77. 



Ten % 9 specimens. (Belfrage; Heiligbrodt.) 



Trypoxylon f ridentatum. 



Trypoxylo7i tridentatuin, Pack. Proc, Ent. Soc. Phil, vi., p. 417. 

 Five % 9 specimens. (Belfrage.) 



Oxybelus Isetns. 



Oxybelus tcEtus, Say, Bost. Journ. Nat. Hist, i., p. 375. 

 Two specimens. (Belfrage.) 



Oxybelus emarginatns. 



Oxybelus emarginatus, Say, Bost. Journ. Nat. Hist, i., p. 375. 

 Two specimens. (Belfrage.) 



Crabro lO-niacnlatui^. 



Crabro 10-maculatus, Say, West. Quar. Rep. ii. p. 78. 

 Seven % 9 specimens. (Belfrage; Boll.) 



Crabro rufifemur. 



Crabro rufifeviur, Pack. Proc. Ent. Soc. Phil, vi., p. 81. 

 One specimen. (Belfrage.) 



