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5 Elongate forms ; ocelli basal of the anterior margin of the 

 eyes, on the vertex . lo Tetigoniini 



5a Stouter forms; oci^lli apical of the anterior margin of the 

 eyes, on the vertex ((jvponidae auctt) 9 Penthimiini 



6 Vertex raised perpendicularly at the sides and base. Ex- 

 terior discoidal area of tegmen undivided to the ai)ical cells 

 7 [assini 



6a Vertex not raised at the sides and base. Exterior discoi- 

 dal area divided (in the long winged forms at least) (7) 



7 Head exceedingly declivous ; ocelli on the vertex ventral 

 of the bend of the head ; spines and bristles on hind tibiae some- 

 what diverse in different forms 



(Bythoscopidae auctt) 3 Eurymelini 



7a Vertex usually more or less porrect ; ocelli (if present) 

 on the angular margin of the head (8) 



8 Radial, median and lirachial veins very ob=cure basally, 

 (apparently springing independently from the basal cell or unit- 

 ing close to it, except Aiicoiio and Dial eel ico/^tcry.v^ ; ocelli ab- 

 sent or feeble 5 Eupterygini 



8a Agnation normal (except in short winged forms, or if ob- 

 scure, then so all over) ; ocelli on the angular margin of the 

 head, or touching it dorsally, rarely obsolescent (9) 



9 Vertex strongly emarginate basally, ocelli in pits on the 

 angular margin ; legs spiny 2 Stenocotini 



9a Vertex rarely nuich emarginate basally. cc.lli never in 

 pits, (or if so, then the legs bristly, not spiny) . .4 Phrync-morphmi 



10 Head laminate or at least elongately produced. X^enation 

 degraded 6 CephaLlini (restr.) 



loa Head never elongatelv produced, never laminate 



(incl. Kahavaluinae ) 1 1 Megophthalmini 



Tribe Ledrini. 



This tribe is nearly always characterized as having a folia- 

 ccous proncttum, owing to the fact that Ledra is the only Euro- 

 pean genus and that the tribe is not represented in North Ame- 

 rica. It is characterized by the more s])ecialize(l legs and bv 

 the dorsal position of the ocelli, but is not altogether natural. 

 Some forms, e. g., Rhotidiis, have a very close reseiublmce to 

 Phrynomorphine genera such as .] mild ion, but are distinguished 

 by the position of the ocelli. 



