268 MEMOIRS OF THE CARNEGIE MUSEUM 



9. Antennae 1 l-jointed 10 



Antennic 13-jointed JlMpipallus Kirby (type Enchnrix vohisnK AValk.). 



10. Scutellum rounded, not conically elevated posteriorly ; wings hyaline. Pseudochalcura Ashniead g. nov. 



(type Eucliai-is ylhbosa Provaneher). 

 Scutellum subconically elevated posteriorly; wings with a substigmal cloud or fascia. Chalcura Kirby 



(type Eucharis deprivafa Walk.). 



11. Scutellum with the processes verj' long, usually as long as the abdomen and sometimes very broad, 



forming a shield over the abdomen, or conically produced 13 



Scutellum bidentate, the processes never very long. 



Metathorax armed with strong lateral projections or teeth 12 



Metathorax unarmed, without teeth. 



A hump-like elevation above the metapleura Stilbula Spinola 



(type Ichneumon cynipiformis Rossi). 



No hump-like elevation above the metapleura ScMzaspidia We.stwood 



(type S. furcifera Westw.). 



12. Metathoracic processes curving downwards LophyTOcera Cameron (type L. straminelpes Cam.). 



Metathoracic processes con.sisting of two diverging horizontal teeth Tetramelia Kirby 



(type Schizaspidia phigiafa Walk.). 



13. Scutellum not conically produced 14 



Scutellum conically produced over the abilomen. 



Head with a deep antennal furrow ; hind femora very broad ; abdomen subsessile, fusifoiTn, 

 depressed Destefania Dalla Torre (type Sternodes Pasaieri De Stef ). 



14. Seutellar processes long and slender, generally curving inward toward tips 18 



Scutellar processes very broad and covering the entire abdomen. 



Thorax not pubescent, the apex of the scutellar processes simple, or cleft or notched 15 



Thorax pubescent, the apex of the scutellar processes rounded and not sharply cleft, the notch 

 extending two thirds the entire length 1" 



15. Scutellar processes long, broad and contiguous, but very flat, the extremities rounded, subtruncate, or 



furnished with two rounded short .spines 16 



Scutellar processes not so shaped. 



Scutellar processes very broad, triangular .... Thoracantha Latreille (type T. latreillei Gueriii). 

 Seutellar processes long, contiguous and acutelj' pointed at tips, longitudinally striate. 



Uromelia Kirby (type Thoracantha striata Perty). 



16. Mesonotum and scutellum medially impressed ; head almost as wide as the thorax ; antennae lO-jointed, 



the third joint as long as the scape, the following much wider than long Dicoelothorax Ashmead 



(type D. plftli/rerii-fi Ashm.). 



Mesonotum and .scutellum not so impressed, the scutellar processes having the basal portion as wide as 



the thorax, briefly compressed in the center, then dilated and at the apex furnished with two rounded 



short spines Laetocantha Shipp (type Thoracantha nasvn Walk.). 



17. Antenmc 10-jointcd, the first funicle joint the longest, the following short Dilocantha Shipp 



(type TJioracantha flaricornh AValk.). 



18. Head and eyes noi-mal, not tubereulate 19 



Head and eyes tubereulate. 



Antenna; 12-jointcd Isomeralia Shipp (type Thonicnntha coronala Westw.). 



19. Antenna; 11-jointed, the third joint not much longer than the fourth 20 



