300 THE CANADIAN ENTOMOLOGIST. 



66 (69) Vertex longer than broad. 



67 (68) Vertex double the length of pro- and mesonotum 



together EmhoIopJiora'^ 



68 (67) Vertex only slightly longer than wide- Eiiidella. 



69 (66) Vertex not longer than wide. 



70 (71) Face almost circular Bakerell(P 



71 (70) Face with sides nearly straight, subparallel. 



72 (73) Median frontal carinae forked near base Liburnia- 



73 (72) Median frontal carinse forked near 



middle Dicranotropis. 



a Median frontal carina? forked near apex Leimonodite. 



74 (55) Medio-lateral carinae of vertex meeting together on 



vertex (meeting sometimes obscure) continued on to 

 face as single carina. 



75 (92) Lateral pronotal carina? straight or convergingly curved 



posteriorly, reaching hind margin or excee'ding near it. 



76 (77) Medio-lateral carinae of vertex meeting together some 



distance before apex, vertex long and narrow, produced 

 well beyond eyes, slightly narrowed in middle; Y- 

 shaped carina "obsolete Saccharosydne. 



77 (76) Medio-lateral carinae _of vertex meeting at apex. 



78 (79) Head, including eyes, distinctly wider than pronotum, 



hind edge of eyes nearly reaching to posterior angle of 

 pronotum; vertex apically truncate, produced but 

 slightly beyond eyes Smicrotodelphax. 



79 (78) Head, including eyes, not wider than pronotum; hind 



edges of eyes not reaching near to posterior angle of 

 pronotum. 



80 (81) Head in profile semicircular Prokelisia. 



1. I place this genus here on the strength of Stal having separated it from 

 Liburnia by the length of head. 



2. I have not seen Eiiidella Speciosa or Diacranatropis hamata so I must let 

 them stand as abo\'e for the present. Nilaparvarta may come ne.xt to 

 EuideUa. 



3. It is possible that this genus will be more appropriately placed in Section 

 B. 



