68 WM. H. ASHMEAD. 



Lab rum wider than long. 



Maxillary palpi 6-jointed ; second cubital cell shorter than the third ; scu- 



tellnm not elevated ; mandibles bidentate Epeoloiries Girard. 



13 Second and third cubital (tells each receiving a recurrent nervure 16. 



Third cubital cell receiving both recurrent nervines; middle tibial spur 



dilated and serrated 9 Acanthopiis Klug. 



14. Third cubital cell receiving both recurrent nervines; antennae very long, 

 longer than the body % . 



Acantliopiis Klug. = Cteniosehelns De Roman. 

 Second and third cubital cells each receiving a recurrent nervure. 

 Metallic bluish green species; clypeus mith a median depression, but not 

 bounded by distinct carina? laterally; the clypeus itself, however, 

 laterally before its apex has a carina, which curves towards the base 

 of the eyes; scutellum large, with a ridge or elevation at sides; maxil- 

 lary palpi 2-jointed ; labial palpi 4,jointed Agla? Lepel. 



lf>. First and second cubital cells subequal, shorter than the third, the secoud 

 trapezoidal ; non-metallic species. 

 Labium normal, without a median depression, yellow ; clypeus and abdo- 

 men yellow, the latter banded with black ; autenme in % deformed, 

 the scape very stout, the flagellum subcylindrical, tapering towards 

 apex, the last joint produced into a curved spine, as in Alcidamea Or. ; 

 hind femora much swollen. 



< iiMi oiio ill aria Ashm. n. g. (Type ('. Bruneri Ashm.). 

 lb. Second and third cubital cell, along the cubitus, about equal, shorter than 

 the lirst; second cubital cell quadrate. 

 Abdomen normal, neither lengthened nor narrowed ; hind femora, with a 

 tooth beneath; maxillary palpi 6-jointed : labial palpi 4-joiuted. 



Lipotriches Gerst. 

 Abdomen much lengthened and narrowed; 9 with the terminal ventral 

 segment much produced, forming an elongate receptable for the base 

 of the sting, which is greatly exserted ; hind femora simple. 



Osiris Smith. 

 17. Marginal cell not quite as long as the three cubital cells united, narrowly 

 rounded at apex, and with a slight appendage; second cubital cell 

 quadrate, half the length of the first; first recurrent nervure joining 

 the second cubital cell near its apex, the second recurrent joining 

 the third beyond its middle; scutellum large, transverse quadrate 

 greatly produced and extending over the metathorax, similar to 

 Crocisa, depressed above, with its apical margin medially triangularly 

 emarginate; abdomen as in Croeisa, with oblong, pearly white spots at 

 the apical angles of the dorsal segments; tongue long, densely pilose 

 (Africa). . • C'roeisaspiriia Ashm. n. g. (Type C. chandleri Ashm.). 

 Marginal cell as long as the three cubital cells united, well rounded at apex ; 

 third cubital cell oblong-quadrate, almost as long as the first and sec- 

 ond united, the second cubital- the smallest cell— scarcely half as 

 long as the third and narrowed above; first recurrent nervure joining 

 the second cubital cell a little beyond the middle, the second recurrent 

 joining the third at its middle; scutellum large, quadrate, with a 

 tubercle on each side at base: abdomen narrow, acutely conical, the 

 hist ventral segment produced much as in Osiris. 



t'celioxoiries tress. 



