PARASITICA — CIT A LCIDIDiE. 77 



Collar broad ; head with hiilging cheeks; left mandihlo .''-dontato. 



Siibf^en. *Habrocytus Thorn. 

 Collar narrow medially ; head nairowino; towards mouth ; both man- 

 dibles 3-detitate Subfren. *Spintherus Thorn. 



Anterior margin of eollar sharp, acutely reflected; mandibles acutely l-dcntate. 



*lsot',vrlu!>» Walk. 

 Eyes hairy; raetathorax long, its a])ical border with large punctures; abdomen 

 with its second segment smooth at base, the third not small. 



Subgen. *l80cyrtus Walk. 

 Eyes smooth ; second abdominal segment with a dense fringe on sides, not 

 large, the third small. 

 Vertex broad; head short, thick, eyes round and prominent; fuuicle of % 



antenna' alternately white Subgen. *Polycelis Thorn. 



Vertex not broad, eyessubovate Subgen. *Trichomalus Thom. 



Head with the vertex sometimes medially acute; eyes occasionally hairy ; man- 

 dibles usually 4-dentate ; autennee often inserted below the 

 middle of the fiice ; ring-joint plainly discernible ; metathorax 

 usually punctulate and furnished with a carina ; abdomen often 

 rotuTid, never produced at apex in 9 ■••.I*teroinaliis Swed. 

 Eyes hairy ; antennse incrassate ; vertex sharp in the middle. 



Wings maculate ; 9 abdomen short, ovate ; tibise with rigid bristles. 



Subgen. *Halizous Thom. 



Wings immaculate; abdomen rotund Subgen. *Trichoglenus Tlnmi. 



Eyes smooth. 



First funicle joint small Subgen. *Meraporus Walk. 



First funicle joint large. 



Metathorax with a large subglobose neck ; flagellum of antennaj filiform ; 

 9 abdomen ovate-acute; postmargiual vein longer than stigmal. 

 Wings entirely pubescent; head with concave cheeks; neck of meta- 

 thorax smooth Subgen. *Catolaccus Thom. 



Wings with a large clear spot; neck of metathorax punctate. 



Subgen. Pteromalus Swed. 



Metathorax usually with a very small neck ; postmargiual vein often 



shorter than siigmal, very rarely longer ; 9 abdomen usually rotund. 



Postmarginal longer than stigmal ; neck of metathorax short ; abdomen 



oval-rotund; vertex broad Subgen. *Diglochis Thom. 



Postmarginal shorter than stigmal or equal to it. 

 Abdomen oblong. 



Vertex rounded medially; 9 abdomen ovate, convex below; 9 

 wings often marked with large .smoky discs; club of 9 antenuse 



small, shorter than pedicel Subgen. *Arthrolytus Thom. 



Vertex acute medially Subgen. *Dibrachys Thom. 



Abdomen rotund; cheeks compres.sed, acute; wings hyaline, iiostmar- 



ginal shorter than stigmal Subgen. *Coelopisthus Thom. 



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



.llet4»i>oii Walk. 

 Antennte 9 strongly iucrassate, subclavate ; % anteniue verticillate-pilose. 



Subgen. Metopon Walk. 



