THE CA.NADUN ENTOMOLOGIST. 5 



3. Front wings with three cubital cells, rarely with tivo cubital cells . . 4. 

 Front wings with two cubital cells. 



Second cubital cell receiving both recurrent 



nervures Poecilotiphia, Cameron. 



(Type P. albomaculata, Cam.) 



4. Marginal cell not at all or only slightly separated from the costa ; 



three cubital cells, the second and third each receiving a recurrent 

 nervure 8. 



Marginal cell widely separated from the costa, nearly to the stigma, 

 and directed forward into the disc of the wing, so as to occupy the 

 place usually occupied by the third cubital cell. 



Two cubital cells 5. 



Three cubital cells 6. 



5. Thorax elongate, the pronotum long ; hind tarsi twice longer than 



their tibiae ; cubitus in hind wings originating before the transverse 



median Hemimeria, Saussure. 



(Type Myzine Savignyi, Guer.) 



6. Second cubital cell neither small nor petiolate 7. 



Second cubital cell very small, longly petiolate ; hind tarsi not twice 



longer than their tibiae Myzine, Latreille. 



= Tachus, Jurine. 



= Meria, lUiger. 



(Type Tiphia tripunctata, Rossi.) 



7. Second cubital cell large, longer than wide, trapezoidal, receiving the 



recurrent nervure far beyond the middle ; hind tarsi al)out twice as 

 long as their tibiai ; cubitus in hind wings originating behind the 

 transverse median nervure ; mandibles long, sickel-shaped, 



edentate Plesia, Jurine. 



(Type Tiphia namea, Fabr.) 



Second cubital cell not so large, receiving the recurrent nervure at the 

 middle; mandibles stout, curved, edentate. . Dimorphoptera, Smith. 



(Type D. scoliiformis, Smith.) 



8. Cubitus in hind wings originating beyond the transverse median 



nervure ; hind tibiae elongate, triangulate ; last joint of hind tarsi 

 not smaller than the fourth . . . . Micromeria (Westwood) Saunders. 



(Type Meria, Llugii, Westwood.) 



