250 MEMOIRS OF THE CARNEGIE MUSEUM 



15. Antennae 13-jointed, with one ring-joint 19 



Antennae 11-jointed, with one ring-joint. 



Marginal vein about four times the length of the stigmal vein ; hind femora with 6 moderately 

 large teeth beneath ; antennae 11-jointed, the flagellum filiform, the first joint shorter than 

 the scape Trigonura Sichel. 



Marginal vein long, four or more times longer than the stigmal vein ; hind femora with 8 teeth 

 beneath ; antennae 11-jointed, the flagellum long, filiform, the first joint longer than the scape. 



Thaumatelia Kirby. 



16. Scutellum with a short thick projection behind ; metathorax emarginate or armed 17 



Scutellum ending in a raised emarginate or bidentate plate ; metathorax unarmed 18 



17. Metathorax produced and excised medially ; hind femora unarmed Oxycoryphe Kriechbaumer. 



Metathorax usually with two teeth on each side (rarely normal) ; hind femora armed with 7 or 8 



teeth beneath Pseudochalcis Kirby. 



18. Antennae 11-jointed ; marginal vein long, the stigmal vein normal, not very long. 



Hind femora armed with one large tooth, followed by 6 or 7 smaller teeth — Stypiura Kirby. 



Hind femora with numei'ous depressed punctures and with 6 large teeth Epitelia Kirby. 



Antennae (?) 12- or 13-jointed ; marginal vein very short, the stigmal vein abnormally long ; hind 

 femora with numerous small teeth beneath (about 14) Larradomorpha Stadelman. 



19. Hind femora armed with many small teeth beneath Chalcis Fabricius. 



Tribe II. Smicrini. 



This tribe approaches nearest to the tribe Chalcidini, but is at once separated 

 from it by having the abdomen always distinctly petiolate, never sessile, and by 

 having the hind coxse abnormally long, as compared with those in the Chalcidini. 



The species are principally parasitic upon lepidopterous larva3, although some 



will attack other insects. 



TABLE OF GENERA. 



1. Females 2 



Males 23 



2. Middle tibiaj without an apical spur , 3 



Middle tibiae with an apical spur 4 



3. Antennae 12- or 13-jointed ; thorax black ; abdomen ovate or conic-ovate, the second segment shorter, 



not occupying nearly the whole surface ; hind femora armed with many minute teeth. 



Smicra Spinola (type Chalcis sispes Fabr.). 



Antennae l4-jointed ; thorax mostly yellow or marked with yellow, never wholly black ; abdomen coui- 



cally produced, the second segment large, occupying most of the surface ; hind femora armed with 



6 teeth of moderate size Epitranus Walker (type E. fulvescens Walk.). 



4. Hind femora armed with one large or moderately large tooth near base followed by many small or 



minute teeth, 10 or more in number 5 



Hind femora armed with from 3 to 9 teeth, the teeth usually large 14 



5. Metathorax unarmed 6 



Metathorax armed with from two to four teeth or projections 10 



6. Scutellum at apex simple, unarmed, without an elevated plate, teeth or spines 7 



ScutelUim at apex armed, with an elevated plate, which is usually emarginate or bidentate 13 



