382 HYMENOPTERA. 



opake, very delicately punctured, and with fine, short, downy, 

 silvery pubescence, most dense on the sides and beneath ; the 

 outer margin of the tegulse pale testaceous ; the wings subhya- 

 line, their apical margins dark fuscous, the nervures black ; the 

 raetathorax obliquely striated above, the striation extending to 

 the verge of the truncation, which has a deep central channel and 

 is obhquely and finely striated ; the legs simple, the calcaria pale 

 testaceous. Abdomen shining, with a fine thin sericeous pubes- 

 cence. 



Hab. Hudson's Bay. 



Very like Trypoxylon figulus, but it is proportionally a shorter 

 insect, the abdomen is more thickened at the base, and the 

 metathorax more evenly striated, and wanting the broad central 

 channel which characterizes T. figulus. 



Genus 2. NITELA. 

 Nitela, Latr. Gen. Crust, et Ins. iv. 210. 1 (1806), 



1. Nitela Spindly. PI. XII. fig. 4. 



Nitela Spinolae, Latr. Gen. Crust, et Ins. iv. 77- 

 Oliv. Encycl. Metk. viii. 204. 1. 

 Guerin, Diet. Class, xi. 572. 

 Van d. hind, Obs. ii. 39. 1, 

 Dahlb. Hym. Europ. i. 297. 180. 

 St. Farg. Hym. iii. 210. t. 27. f . 1 ? . 



Hah, France; Italy; Sweden. 



Genus 3. OXYBELUS, 



Vespa, pt., Linn. Syst. Nat. i. 948 (1766). 

 Apis et Nomada, pt., Fabr. Mant. i. (1787). 

 Crabro, pt., Fabr. Ent. Syst. ii. 293 (1793), 

 Oxybelus, Latr. Hist. Nat. xiii. (1805). 



1. Oxybelus uniglumis. B,M. 



Vespa uniglumis, Linn. Faun. Suec. 1681; Syst. Nat. i. 951. 18. 



Villers, Ent. iii. 271. 14. 



Christ. Hym. 246. 

 Crabro uniglumis, Fabr. Syst. Ent. 376. 12 ; Ent. Syst. ii. 300, 



Rossi, Faun. Etrus. ii. 92. 884. 



Oliv. Encycl. Meth. viii. 595. 34, 



Pans:. Faur\,. Gerrfi. 64, 14, 



