242 HTMENOPTERA OP AMERICA. [PART I. 



macula subalari, post-scutello, metanoti maculis 2 superne abdominis- 



que segmentoram Limbo 1. 2 flavis ; tibiis extus flavis ; alis ferrugineis, 



apice nubecula fusca. — Longit, 11 mm.; alae, 9 mm. 

 9. Clypeo pirifbrmi, grosse punctato, apice subbidentato superne flavo. 

 $. Clypeo ovato, flavo, apice submargiaato ; antennaruni scapo flavo 



fasciato; flagello apice baud uncinato. 



Odyn. tibial;-; Sauss. Et. Vespid. I, 1S3, 78 (1852), 9 



Bess. a. diff. — This has the form of 0. cubensis, from which 

 it differs by its black forehead, antennae, scutel, and feet; by its 

 thorax not so strongly punctured, by the edges of metathorax not 

 so much separated from the post-scutel, and by the clypeus 9 

 more coarsely punctured and not distinctly bidentate, while the 

 male has the apical margin of the elypeus a little concave, with 

 acute angles. 



Unit. Venezuela. Caraccas 9- (Hayti£.) 



Observation. — The 9 comes from the collection of De Romand, 

 whoso etiquettes are not always exact. The male is labelled as 

 caught by me at Ilayti. This male is certainly of the same spe- 

 cks as the female. The species may come from St. Domingo. 



IS. O. Cul>ensis Sadss. — Niger; capite et tborace dense cribri instar 

 punctatis; pronoto antice subcoarctato; post-scutello truncato, trans- 

 versim tenuiter carinato ; inetauoto verticali, excavato, utrinque dente 

 instructo, superne canthis acutissiuiis marginato, bis a post-scutello 

 fissura sejunctis ; abdomine conico ; primo segniento antice acute trun- 

 cato canthum transversum eflk-iente ; secundi segmenti margine punc- 

 tato. Mandibulis, macula frontali, antennarum articnlis 1°, 2°, pro- 

 noti margine autico late, tegulis, macula subalari, scutelli maculis 2, 

 post-scutello, metanoto summo utrinque, abdominis segmentorum 1-2 

 margine (primi fascia in lateribus aucta), et pedibus, flavis ; abdominis 

 segmentis 4-(J rufis, et frequenter tertio rufo-limbato ; alis ferrugineis, 

 apice fusco-nebulosis. — Longit, 11 mm.; aire, 9.5 mm. 



9. Tborace longiore quam latiore ; clypeo piriform!, punctato, flavo, 

 macula nigra, apice bidentato dentibus angulatis. 



% . Tborace magis cubico ; clypeo ovato, flavo, Isevi, apice truncato, bian- 

 gulato; oculorum sinu flavo-marginato. Antennis apice simplicibus. 



Odyn. cubensis Sauss. Et. Vespid. I, 181, 75,' pi. xviii, fig. 8 (1852). 

 Hab. Cuba. (2 9, 2 %.) 



1 In tbis description I have mingled the form of the clypeus 9 with tbe 

 description of tbe £ , doubtless because the simple antennae of the £ led 

 me to take a % for a 9 • 



