1848 



REPQRT OF THE CHIEF OF ENGINEERS. 



REPORT. 



HYMENOPTERA. 



TEXTHREDIXID2E. 



UROCERUS. 



Urocerus Flaricornis, Fab. $ . 



(Sirex Bizonatus Steph.) 



Apatlnis JElatns Fab. $.. 



Boml)ns\Fervidu8 Fab. &amp;lt; 

 Bombus Ternarins Say. 



Ncgachilc Buccpltala Smith. 

 Mdissodes Tnfasciata Cress. 

 Anthidlnm Formosnm Cress. 



Vespa Occideutalis Cress. 

 Polistes Sulphured Sauss. 



Pompilns JEtliiops Cress. 

 Ichneumon Long til us Cress., 



Oplrion Pnrgalns Say. 

 Ophion BU uieatus Say. 



Tliyreop-us Vicinus Smith, 



Snuo d 2$imacHl(ita } n. sp. 



APIDJE. 



APATHUS. 



BOMBUS. 



. 



MEGACHILE. 



MELISSODES. 

 ANTHIDIUM. 



YESPID2E. 

 VESPA. 



POLISTES. 



POMPILIDJB. 



POMPILUS. 



ICHXEUMOXID^E, 



ICHNEUMON. 



OPHION. 



THYREOPUS. 



CHALCIDID.E. 



SMICRA. 



Black; face prolonged beneath eyes, closely punctured, on each side at base of au- 

 a snbtriangnlar, lemon-yellow spot; mandibles castaneous at tips; scape of 



