9 

 -36- 



wiih a caiina; abdomen often rotund, never produced at apex with Q 



Genus Pteromalus Swederus. 



Mandibles with three acute strong teeth; collar narrow, scarcely discernible 



Genus Metopon Walker. 

 Genus DIMACHUS. 

 Collar not separated; funicle filiform, joint i large. 



Marginal vein thickened, stigmal nearly same length or a little longer; body short... 



Subgenus Caenocrepis. 

 Marginal vein delicate, longer than stigmal. 



Abdomen with a basal yellow band Subgenus Dimachus. 



Abdomen with no band ^ Subgenus Hemitrichus. 



Collar separated. 



First funicle joint short. 



Antennae short, clavate Subgenus Habritus. 



Antennce filiform Subgenus Dinarmus. 



First funicle joint cylindrical; antennae filiform Subgenus Picroscytus. 



Genus MERISUS. 

 First fiinicle joint short; rim of the metathorax with large punctures; coxa? all rufous 



Subgenus Bceotomus Foerstcr. 



First funicle joint as long as the following. 



Abdomen subcylindrical, joint 3 short Subgenus Merisus Walker. 



Abdomen subovate, dorsum often flattened Subgenus Homoporus Thomson. 



Genus EUTELUS. 

 Marginal vein one and a half times as long as the stigma); metathorax with distinct 

 lateral folds; club oi (^ antennae blackish. 

 Head with narrow vertex; 9 ocelli placed in a very slightly curved line; thorax 



short Subgenus Eutelus Walker. 



Head with broad vertex; clypeus incised or truncate at apex; ocelli large; placed 

 in a triangle; thorax long; margin of collar sharp; abdomen elongate, 



triangular Subgenus Platytermus Thomson. 



Marginal vein not at all or bnt slightly longer than stigmal; metathorax with no 

 lateral folds; first funicle joint very small; vertex and collar narrow. 



Antennae inserted a little below the middle of the face 



Subgenus Amblymerus Thomson. 



Antennae inserted slightly abfive the clypeus; metathorax very short 



Subgenus Psilonotus Thomson. 



Genus ROPTROCERUS. 



Antenna' inserted almost in the middle of the face which is impressed with large- 

 punctures Subgenus Roptrocerus Ratzeburg. 



Antenna: inserted scarcely above the clypeus Subgenus Anogmus Foerstcr. 



Genus JETROXYS. 

 Clypeus armed apically in the middle with a tooth; thorax long, collar acutely 



margined and dilated laterally ; metathorax with short folds or none at all 



Subgenus Stenomalus Thomson. 

 Clypeus with no apical tooth, but with a sinuate or tnmcate apex. 



Wings with a large stigmal club; head with the cheeks often rounded; collar 

 separated, acute and not narrow medially. 



