— 4 — 



пут of genus Phaenacra Förster. Genus Tropidogastra 

 Ash mead was not examined by the writer, but most pro- 

 bably it is synonymical with this genus too. 



13. Last joint of antennae stylate Rhaphiteles Walker. 



Last joint of antennae normal 14 



14. Marginal vein thickened lb 



Marginal vein slender, normal IB- 

 IS. Stigmal and postmarginal veins short, each about half as long 



as marginal vein. Ring joints transversal . Metacolus Förster. 



Stigmal and postmarginal veins each more than half as 

 long as the marginal vein. Ring joints not transversal, large. 



Pandeliis Förster. 



16. Knob of stigmal vein widened Dinotus Förster. 



Knob of stigmal vein not widened, small or middle- 

 sized Rhopaliciis Förster. 



17. Marginal vein distinctly longer than the stigmal vein; lateral 

 folds on the propodeum distinct; club of the male antennae 

 black Eiitelus Walk. 



Marginal vein not or but slightly longer than the stig- 

 mal vein. Lateral folds on the propodeum absent 18 



18. Antennae inserted only a little below the middle of the face 



Amblymerus Walk. 



Antennae inserted just above the clypeus. Propodeum 

 very short. Hypopygium reaching almost to the tip of the 

 abdomen Psilonotus Walk. 



19. Eyes hairy, second abdominal segment bare . . Isocyrtus Walk. 



(Partly : /. dcntifer Thorns.) 



Note. I have never been able to see any repre- 

 sentative of this genus. If /. dentifer T h о m s. is really 

 so shaped as described by Thomson, it should be 

 selected as a type species for a new genus. 



Eyes nacked, second abdominal segment pubescent . . 20 



20. Eyes rotund, prominent; wings with dusky spots. Male an- 

 tennae with white ring Polyscelis T h о m s. 



Eyes ovate, otherwise the wings immaculated and the 

 male cheeks with a smooth space between the base of the 

 mandibles and the eye Trkhomaliis Thorn s. 



Note. ks, I have seen, the type species (/. puncti- 

 nucha Thoms. ^ lucidus Forst.) has immargined 

 occiput. Thus Ashmead's interpretation of this genus 

 is wholly erroneous. Genus Epipteromalus A s h m e a d 

 is a part of the genus Trichomalus Thoms. 



Revue Russe d'Entom. ХП1. 1913. № 1. 



