306 THE CANADIAN ENTOMOLOGIST. 



Mandibles beneath simple, not excised g. 



7. Mandibles acuminate, or with a tooth within before apex, never 



3-dentate 14. 



Mandibles stout and strong throughout, at apex 3-dentate. 



Front wings with only one recurrent nervure 8. 



Front wings with two recurrent nervures 13. 



8. Ocelli large ; submedian cell a little longer than the median ; first 



and second joints of the flagellum cylindrical, more than twice 

 longer than thick, and about equal in length. (North 



America.) Neophotopsis, Ashm., gen. nov. 



(Type Photopsis pluto, Fox.) 



Ocelli small ; submedian cell not longer than the median ; first joint 



of the flagellum a little longer than thick and shorter than the 



second. (North America.) Bruesia, Ashm., gen. nov. 



(Type Mutilla harmonia. Fox.) 



9. Front wings with three cubital cells, or the third partially formed. . 12. 

 Front wings with two cubital cells, the third entirely absent. 



Mesonotum with distinct parapsidal furrows 10. 



Mesonotum without parapsidal furrows 11. 



10. Mandibles at apex 3-dentate. 



Front wings with two cubital cells. (North 



America.) Neophotopsis, Ashm. (partim). 



11. Second cubital cell triangular; ocelli large; flagellum cylindrical, the 



first joint longer than wide, but shorter than the second. (North 



America.) Micromulilla, Ashmead. 



(Type Photopsis nana, Ashm.) 



Second cubital cell small, irregularly pentagonal ; ocelli not large, 

 close together in a triangle. (South 



America.) Scaptodactyla, Burmeister. 



(Type S. heterogama, Burm.) 



1 2. Mandibles strong, 3-deniate at apex. 



Front wings with only one recurrent nervure ; first abdominal 

 segment smooth, or at most only sparsely feebly 

 punctate Neophotopsis, Ashm. (partim). 



Front wings with two recurrent nervures ; first abdominal segment 

 distinctly, closely punctate Photopsis, Blake (partim). 



