tHE ENTOMOLOGIST. 



A. 

 a. 

 b. 



* 



B. 

 a. 



b. 



tf 



X 



X X 



A 



AA 



SCELIONID^. 



Club of the antennas not jointed. 



AVings developed. ... 



Wings none or rudimentary. 



No scutellum, .... 



Scutellum developed. 



Club of the antennae jointed. 



Subcostal vein shortened, not joining the 



costa. - - . - . 



Subcostal vein not shortened, joining the 



costa. 

 Marginal branch very long, at least four or 



five times as long as the stigmatic branch. 

 Scutum with two sharply-defined complete 



furrows. Antennas of the male long, 



verticillate ; of the female clavate. 

 Scutum without such furrows. Antennae of 



the male not verticillate. 

 Hind tarsi thick. Middle tibiae with feeble 



spines. - - . - - 



Hind tarsi not thick. Middle tibiae without 



spines. - - . - . 



Marginal branch very short, mostly shorter 



than the stigmatic branch. 

 First abdominal segment narrow. 

 Second abdominal segment the largest. 

 Third abdominal segment the largest. 

 Furrows of the parapsides very distinct. 



Wings with no postmarginal branch. 

 Furrows of the parapsides not apparent. 



Wings with a long postmarginal branch. - 

 First abdominal segment l)road. 

 Front with a sharply-defined border. 

 Front with no such border. 

 Postmarginal branch much developed, longer 



than the stigmatic branch. 

 Postscutellum with some spines. 

 Postscutellum with no spine. 

 Antennae filiform in the female. 

 Antennae clavate in the female, filiform in the 



male. 

 Marginal branch punctiform. Last joint of 



the club of the antenna) twice as long as 



the preceding joint. 



Thoron. 

 B^us. 



ACOLUS. 



B^ONEURA. 



Xenomerus. 



Teleas. 

 Prosacaktha. 



Telenomus. 



Antebis. 

 Baryconus. 



Sparasion. 



Trimorus. 

 Apegus. 



Grvon. 



