ODYNJflKUS. 313 



species of both scries. Thus 0. vagus seems nearly of a form 

 with A. fulvipes, in which the suture of the first abd. segment 

 should disappear. 



A. Metathorax slightly prolonged under the post-scutel beyond 

 it, being truncate before; 1 its concavity margined with 

 sharp edges, nearly angulate on each side. 



a. Abdomen slender, cylindrical ; first segment as wide as the second. Body 



velvety. 



115. O. Enyo — Gracilis, elongatus et angustus, oramino velutinus ; 

 clypeo J piriform], punctato, apice biangulato ; capite et thorace grosse 

 cribratis ; pronoto biangulato ; metanoto granuloso, pone post-scutellum 

 foveolato-truncato ; ejas foveola rotundata marginibus arcuatis, hebet 

 atis punctatisque circumdata ; canthis inferis utrinque dente dupliee 

 instractis ; abdomine valde elongato, angusto ; dense punctato et velu- 

 tino ; primo segraento magno, elongato, basi truncato, snpra fere pariter 



. longo quara lato, grosse cribrato et in longitudinem per canaliculmn 

 obsoletum partito. — Niger ; ore, capite abdonainisque segmentis 3-6, 

 obscure ferrugineis ; clypeo, thorace et abd. sec undo segmento nigris ; 

 tegulis, post-scutello, metanoto, abdomiuis primo segmento et pedibus, 

 anrantiis ;autennis aurantiis ; basi ferrugineis ; alis flavis, parte apicali 

 nigra. Longit. 12 mm. 



% . Minor; metanoti canthis paulo distinctioribus macula frontali et 

 clypeo, flavis ; hoc anguste polygonali, bidentato ; antennis uncinatis, 

 aurantiis. 



Odyn. Enyo Lep. St. Farg. Hymen. II, 648, 33 (1841).— Safps. Et. 



Vespid. I, 185, 81.— Sagra's Hist, de Cuba, Ins. 770. — Cbbsson, 



Philad. Eutom. Proceed. IV, 1865, 165. 

 Odyn. elegans Goer. Icon. Regu. Anim. Ins. 446, pi. 72, fig. 5 (1S42). 



Hob. Cuba. 



B. Metathorax scarcely, or not distinctly produced under 

 . the post-scutel, beyond it. 



a. Abdomen elongate, cylindrical, with the 1st segment as wide as the '2d. 

 elongate; or ovoid-elongate with the 1st segment a little narrower, rounded. 



* The 1st and 2d abdominal segments each adorned iri'h tiro i/elleie ftpots, or/ 



beside their marginal fascia. 

 (Observation.-— -These spots are often wanting, particularly in 0. toil 



1 This type finds in the Stenancistrocerus its corresponding type to 



Stenanc. histrio. 



