252 MEMOIRS OF THE CARNEGIE MUSEUM 



16. Hind femora armed with 8 large teeth or less 17 



Hind femora armed with 9 moderately large teeth. 



Scutellum sometimes unarmed but usually ending in a bidentate plate. 



Enneasmicra Ashmead, gen. nov. (type Smicra exinamius Walk.). 



17. Hind femora armed with 7 large teeth or less 19 



Hind femora armed with 8 large or moderate sized teeth (the 8th tooth sometimes reduced in size or 



followed by one or two miuute teeth, or the 6th tooth is tridentate at apex). 



Mesonotum luith distinct parapsidal furrows, or at least distinct anteriorly 18 



Mesonotum without distinct parapsidal furrows. 



Abdomen fusiformly pointed, the petiole very short ; hind femora about 2^ times as long 

 as wide Protoceras Kirby (type Smicra leucotelus Walk.). 



18. Scutellum at apex usually ending in an emarginate or bidentate plate ; abdomen in female lanceolate 

 or conically produced ; the 8th segment often long, styliform. 



Octosmicra Ashmead, gen. nov. (type 0. laliceps Ashm.). 



19. Hind femora armed with 6 large teeth or less 20 



Hind femora armed with 7 large teeth, the seventh usually much reduced in size. 



Abdomen iu female conically produced or fusiform, the 8th segment sometimes styliform or pro- 

 duced into a stylus, the petiole not short ; mandibles in 9 bi- in (J" tri-deutate. 



Heptasmicra Ashmead, gen. nov. (type Smicra obliterata Walk.). 



20. Hind femora armed with 5 large teeth or less 21 



Hind femora armed with 6 large teeth (the 6th tooth sometimes broad and at apex 3-dentate). 



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

 the hind wings, the latter extending slightly over the metapleura, the sculpture coarse ; teeth 



of hind femora short and stout Diplodontia Ashmead (type Smicra Carolina Ashm.). 



Metathorax usually, but not always, armed with two, not very prominent, teeth, but luithout the 

 lamina or plate behind the insertion of the hind wings, the sculpture alveolate ; teeth of hind 

 femora large, long. 



Abdomen in female subglobose or short ovate, the petiole always more than twice longer 



than thick Metadontia Ashmead (type Smicra montana Ashm.). 



Abdomen in female lanceolate or fusiformly produced, longer than the head and thoi'ax 

 united, the petiole very short, nut longer than thick. 



Hexasmicra Ashmead, gen. nov. (type Smicra transversa Walk.). 



21. Hind femora armed with 4 large teeth or less 22 



Hind femora armed with 5 large teeth. 



Eyes very large, occupying neai-ly the whole sides of the head ; mandibles broad, 3-dentate ; 

 scutellum usually ending in an emarginate or bidentate plate ; metathorax alveolate. 



Pentasmicra Ashmead, gen. nov. (type P. hrasiliensis Ashm.). 



22. Hind femora with 4 large teeth ; metathorax u.sually with teeth or projections, rarely unarmed ; plate 



at apex of .scutellum bidentate or broadly emarginate ; abdomen ovate or conic-ovate, rarely 



fusiform, the eighth segment in female never very long Tetrasmicra Ashmead, gen. nov 



(type Smicra concitata Walk.). 

 Hind femora with 3 large teeth Trismicra Ashmead, g. nov. (type S. contracta Walk.). 



23. Middle tibise without an apical spur 24 



Middle tibise with an apical spur 25 



