CLASSIFICATION OF THE BKES. 61 



11. First discoidal cell fully as long or distinctly longer than the marginal cell. 



Basal joint of hind tarsi in % normal, not curved, in 9 produced at apes 

 beyond the insertion of the second joint; flagellum not depressed. .12. 

 Basal joint of hind tarsi in % very long and curved or simply bent; flagel 

 lum in 9 subdepressed ; first recurrent nervure joining the second 

 cubital cell near its middle, the second recurrent received by the third, 

 either near its middle or beyond near its apex 

 Second cubital cell trapezoidal wider (higher) than long, but twice as long 

 along the cubitus as along the radius; abdomen not fasciate. 



Emplior Patton 



12. Head rather large, the ocelli arranged in a transverse line; mandibles at 



apex bidentate; abdomen in 9 5-segmented, in % 6-segmented ; hind 



tibise without a knee plate ; claws bifid Nouoeca Latr. 



Head normal, the ocelli arranged in an obtuse triangle, or on a slight curved 



line ; mandibles at apex simple or bidentate. 

 Second cubital cell, along the cubitus, distinctly shorter than the first or 



third. 14. 



Second cubital cell, along the cubitus, as long or very nearly as long as the 



first, both being considerable longer than third 16. 



13. Cubital cells, aloug the cubitus, about equal or subequal, the third along the 



radius only half as long as along the cubitus. 



Second cubital cell a little larger than either the first or third, and along 

 the radius longer than along the cubitus; first recurrent nervure re- 

 ceived by the second before the. middle ; mandibles 3-4 dentate. 



< Vnt ris Fabr. 



Second cubital cell not larger than the first or second, usually a little 

 shorter, and along the radius not longer than aloug the cubitus, usually 

 shorter; first recurrent nervure received by the second cubital cell far 

 beyond the middle, or interstitial with the second transverse cubitus; 

 mandibles edentate, or at most bidentate at apex. 

 Abdomen in 9 with 5 dorsal segments, not fasciate; antennge filiform; 



claws simple Epicolpns Spin. 



Abdomen in 9 with 6 dorsal segments, fasciate or subfasciate; claws 

 cleft; maxillary palpi 5 jointed; clypeus in 1 yellow, the antenna- 

 very long Tetralouia Spin. 



14. Abdomen in 9 w ' tn °", in % with 7 dorsal segments; antenna? in 9 not long, 



subcom pressed at apex, in % very long; bind tibial spurs normal; 

 claws cleft. 



Maxillary palpi 6-jointed ; second cubital cell quadrate or nearly, scarcely 

 narrowed above, the first recurrent nervure received at its apical 

 fourth Syuhalonia Patton. 



Maxillary palpi 5-jointed. 



First recurrent nervure received by the second cubital cell at its extreme 

 apex, or very nearly interstitial with the second transverse cubitus, 

 the second cubital cell longer than wide ; thorax clothed with a whitish 

 or cinereous pubescence; abdomen fasciate. 



Tetraloaiella Ashm. n. g. (Type T. graga Everm.). 



First recurrent nervure received by the second cubital cell only a little 



beyond its middle, or at most at its apical third, the second cubital cell 



quadrate or a little wider (higher) than long; thorax clothed with a 



fulvous pubescence XeuOglOSSH Smith 



TEANS. AM. ENT. SOC. XXVI. JUNE, 1899. 



