254 MKMOIKS OF THE CARNEGIE MUSEUM 



35. Hind femora armed witli 5 large teeth or less 3G 



Hind femora armed with 6 large teeth. 



Metathorax armed with two triangular teeth or projections and a lamina or plate just behind the 

 insertion of the hind wings that extends slightly over the mesopleura ; teeth of hind femora 



short and stout Diplodontia Ashmead. 



Metathorax sometimes armed with two teeth, sometimes unarmed but always without the 

 lamina or plate. 



? cf unknown Metadontia Ashmead. 



? cf unknown Hexasmicra Ashmead. 



36. Hind femora armed with 4 large teeth or less 37 



Hind femora armed with 5 large teeth Pentasmicra Ashmead. 



37. Hind femora ai-med with 4 large teeth Tetrasmicra Ashmead. 



Hind femora armed with 3 large teeth Trismicra Ashmead. 



Tribe III. Chalciiclliui. 



This tribe is proposed for a small group closely allied to the tribe HaltichcJIini, 

 but is easily distinguished by the distinctly petiolate abdomen. 



The group is unknown to the American fauna, although some South American 

 genera in the Smicrini come quite close to it; they are, however, easily separated 

 b}'^ having the antennae inserted farther up on the face and not low down close to 

 the mouth, as in this tiibe. 



TABLE OF GENERA. 



1. Females 2 



Males 4 



2. Antennte 13-jointed 3 



Antennae 11-jointed (the club indistinctly jointed). 



Hind femora with 7 or 8 large teeth Chalcitella West wood (type C. evanioides Westw ) 



3. Hind tibise without a tooth outwardly near base, the hind femora armed with many very minute teeth. 



Arretocera Kirby (type Epitranus albipennis Walk.). 



Hind tibise with a tooth outwardly near base, the hind femora with one large tooth and then finely 



serrate beyond Anacryptua Kirby (type Epitranus impulsulor Walk.). 



4. Characters as in females. 



Tribe IV. HaUichdlini. 

 This tribe resembles most closely the tribe Chalcidini and is separated from it 

 with dicuffilty, the difference in the insertion of the antennae alone being the only 

 character tliat readily distinguishes the two tribes. 



In this trilje the antennse are inserted close to the mouth border, the scape being 

 long, while the postmarginal vein is wanting, or rarely vei-y long as in the Chakidhd 

 and the Sinicrini. 



TABLE OF GENERA. 



1. Females 2 



Males 17 



