242 IIYMEXOPTERA OF AMERICA. [PART I. 



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



que segmentorum liinbo 1, 2 flavis ; tibiis extus flavis ; alis ferrugineis, 



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

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

 £ . Clypeo ovato, flavo, apice submarginato ; anteuuarum scapo flavo 



fasciato ; flagello apice baud uncinate 



Odyn. tibialis Sauss. Et. Vespid. I, 183, 78 (1852), 9 



Bess. a. cliff. — This lias the form of 0. cubensis, from which 

 it differs by its black forehead, antennas, 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 clypeus a little concave, with 

 acute angles. 



Hab. Venezuela. Caraccas 9. (HaytiS.) 



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

 whose etiquettes, are not always exact. The male is labelled as 

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

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



IS. O. Cubensis Sauss. — Niger; capite et thorace dense cribri instar 

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

 versiin tenuiter carinato ; metauoto verticali, excavato, utrinque dente 

 instructo, superne cantbis acutissimis marginato, his a post-scutello 

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

 cato cantbum transversum efficiente ; secundi segmenti margine punc- 

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

 noti margine antico late, tegulis, macula subalari, scutelli maculis 2. 

 post-scutello, metauoto summo utrinque, abdominis seguientorum 1-2 

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

 segmentis 4-6 rufis, et frequenter tertio rufo-limbato ; alis ferrugineis, 

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



9- Thorace longiore quam latiore ; clypeo piriformi, punctato, flavo, 

 macula nigra, apice bidentato dentibus angulatis. 



% . Thorace magis cubico ; clypeo ovato. flavo, laeri, apice truncato, bian- 

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



Odyn. cubensis Sacss. Et. Vespid. I. 181, 75 ? ' pi. xviii, fig. 8 (1S52). 

 Hab. Cuba. (2 2, 2 V) 



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

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

 me to take a % for a 9 • 



