250 MEMOIRS OF THE CAKNEGIE MUSEUM 



1.") Antunnre 13-j()inted, with one ring-joint 19 



Antennje ll-jointed, with one ring-joint. 



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

 large teeth beneath; antennse ll-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 ll-jointed, the flagellum long, filiform, the first joint longer than the scape. 



Thaumatelia Kirliy. 



16. Scutellum witli a short thick projection behind ; metathorax emarginate or arnK'<l 17 



Scutelhim ending in a rai.sed emarginate or bidentate plate ; metathorax un;iriiicd 18 



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



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



teeth beneath Pseudochalcis Kirby. 



18. Antennse ll-jointed ; marginal vein long, the .stigmal vein normal, not very long. 



Hind femora armed with one large tooth, followed by 6 or 7 smaller teetli . Stypiura Kirliy. 



Hind femora with numerous depressed punctures and with 6 large teeth Epitelia Kirby. 



Antennse (?) 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 trilje 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 Vhakidini. 



The species are principally parasitic upon lepidopterous larvie, although some 

 will attack other insects. 



TABLE OF GENERA. 



1. Females 2 



Males 23 



2. Middle til)i;e mlhout an apical spur 3 



Middle tibiai with an apical spur -1 



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



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



Smicra Spinola (type Chalcis sispes Fabr.). 



Antenna; l-l-jointed ; thorax mostly yellow or marked with yellow, never wholly black ; abdomen coni- 



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



6 teeth of moderate size Epftranus Walker (type E. fiilvescens Walk.). 



4. Hind femora armed with one Idrge 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 teetli 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 



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



