382 HYMENOPTERA. 



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

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

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

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

 metathorax obliquely striated above, the striation extending to 

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

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

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

 cence. 



Hab. Hudson's Bay. 



Veiy 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.Jigulus. 



Genus 2. NITELA. 

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



1. NiTELA SpiNOLiE. PL XII. fig. 4. 



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

 Oliv. Encycl. Meth. viii. 204. 1. 

 Guerin, Diet. Class, xi. 5/2. 

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

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

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



Hab. 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, 



Panz. Faun. G^rm. 64. 14, 



