484- Illinois State Lahoratonj of Natural Histori/. 



h. Front tricarinate TriecpJiora, Am. & Serv. 



hij. Front unicarinate. 

 r. Carina weak, not well developed. 



Monecphora, Am. & Serv. 



(■('. Carina angulate, developed in the form of a laterally 



compressed wedge.. . .Spltoiorhiiia, Am. & Serv. 



SUBFAMILY APHROPHORIN^, Stal. 



A. Ciavus acumiuate. 



a. Intramarginal vein of wings interrnpted before apex ; 

 apex plicated; anal cell broadened; front in middle 

 with an interrupted ruga ; ocelli distant. 



Lcpyronia^ Am. & Serv. 

 aa. Intramarginal vein of wings not interrupted before 

 apex ; not plicated at apex. 

 h. • Alar cell behind second anastomosis acuminate pos- 

 teriorly, not touching intramarginal vein ; apex of 

 clypeus touching anterior coxae. 



Ptijelas, Lep. & Serv. 

 hh. Alar cell behind second anastomosis extended to in- 

 tramarginal vein. 



c. Vertex and thorax furnished with a longitudinal 

 median carina ; scutellum shorter than thorax ; 

 ocelli distant from the eyes ; rostrum long. 



Aphrophora^ Germ. 

 cc. Vertex destitute of a median carina ; rostrum short 

 or medium ; posterior tibiae 2-spined. 



d. Thorax distinctly broader than head, sexangular, 

 front lateral margins long, strongly converging for- 

 wards ; intramarginal vein of wings undate between 

 apices of anterior longitudinal veins; front with an 

 obtnse longitudinal carina; apex of rostrum reach- 

 ing middle coxae ; ocelli equally remote from each 

 other and eyes ; scutellum much longer than wide, 

 extending far behind metanotum. 



CepJiisifs, Still. 



d(L Thorax not at all, or l>ut little, broader than head, 



sexangular, in front lateral margins sometimes much 



