THE CANADIAN ENTOMOLOGIST. 313 



4. Hind wings with a surrounding nervure at apex. ^ ..Perineura, Hartig. 



5. Malar space wanting or very narrow, linear, always shorter than the 



pedicel 6. 



Malar space distinct, as long or longer than the pedicel or second 

 joint of antennt« 10. 



6. Lanceolate cell with an oblique cross-nervure 9. 



Lanceolate cell with a short, straight or perpendicular cross-nervure. 



Hind wings without a discal cell 8. 



Hind wings with one discal cell 7, 



Hind wings with two discal cells. 



Anal cell in hind wings as long as the submedian. 



? Tenthredopsis, Costa. 



Anal cell in hind wings a little shorter than the submedian. 

 Head and thorax cribrately punctate ; antennae short, 



not tapering at tips. $ Sciopteryx, Stephens. 



Head and thorax smooth, shining, at the most sparsely 

 punctate; antennte not short, tapering toward tips. 

 c? Rhogogastera, Konow. 



7. Hind wings with a surrounding nervure at apex, the anal cell a little 



shorter than the submedian. (^ Tenthredopsis, Costa. 



Hind wings without a surrounding cell at apex, the anal cell a little 

 shorter than the submedian. ^ Amestasteiga, Costa, 



8. Hind wings with a surrounding nervure at apex, the anal cell as long 



as the submedian. ($ . 

 Hind wings without a surrounding nervure at apex. 



Anal cell as long as the submedian. $ ...Homoeoneura, Ashm.,n,g. 



(Type P. delta, Prov.) 

 Anal cell shorter than the submedian. 9 ..Rhogogastera, Konow. 



9. Hind wings with two discal cells, the anal cell shorter than the sub- 



median Pachyprotasis, Hartig. 



Hind wings with one discal cell, the anal cell as long as the sub- 

 median Beleses, Cameron. 



10. Hind wings with two discal cells 11. 



Hind wings with one discal cell 14. 



Hind wings without a discal cell 15. 



ir. Wings not narrowed, the transverse radius not or rarely strongly 

 curved 12. 



