49 2 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



ii. Mesthorax lusterless, with dense, fine, clearly defined urn- 



bilicate punctures 12 



Mesothorax more or less lustrous 13 



12. Funicular joints thicker than long; marginal vein wanting.. 



Aphycus p. 501 

 First to fifth funicular joints longer than thick; marginal 

 vein present Blastothrix p. 502 



13. Anterior wings ciliate; apical funicular joint not five times 



as long as wide 14 



Anterior wings not ciliate; sixth funicular joint five times as 

 long as wide Psilophrys p. 503 



14. Marginal vein one and one-half times as long as the stigmal, 



scapulae meeting in a carina; antennae longer than the body 



Leptomastix p. 503 

 Marginal vein much shorter than in Leptomastix; scapulae 

 not meeting in a carina; pedicel not three times as long 

 as thick, club thicker than the funicle Encyrtus p. 504 



15. Funicle 6-jointed, the joints not triangular; mesothorax with- 



out an impression before tegulae 16 



Funicle 4-jointed, antennae n-jointed, simple, not branched, 

 front as in the description of female above, clypeus not 

 carinate; otherwise much as in the description of the female 

 given above Meromyzobia p. 493 



16. Each funicular joint with two half whorls of hairs ..... 17 



Each funicular joint hairy, but without half whorls of hairs 20 



17. Marginal vein shorter than stigmal 18 



Marginal vein longer than stigmal; mesothorax with silver 



hairs that are close together, scutel usually with a bunch of 

 upright spiny hairs at tip Chiloneurus p. 496 



18. Head and dorsum of thorax not thickly covered with large 



round punctures 19 



Head and dorsum of thorax thickly covered with large round 

 punctures Bothriothorax p. 497 



19. Wings with long cilia; head and thorax very finely shagreened 



and lustrous; body flat Rhopus p. 493 



Wings with short cilia; body finely punctate, lusterless 



Blastothrix p. 502 



20. Scutel without a bunch of hairs; funicle not or but slightly 



compressed 2I 



Scutel with a bunch of erect black hairs before its tip 



Comys p. 494 



21. Head and mesothorax with thick and sharp round punctures 25 

 Head and mesothorax not thus sculptured 22 



22. Mesothorax moderately or strongly lustrous, and usually with 



distinct sculpture; marginal vein usually shorter than the 



stigmal, seldom as long, or wings rudimentary 23 



Mesothorax lusterless and apparently sculptureless when 

 seen under a low power lens; face delicately arched, pedicel 

 longer than the first funicular joint Aphycus p. 501 



