McAtee — Genera of the Eupterygidae. 123 



Summary of statistics as to genera. 



Of the 33 generic names proposed for Eupterygidae, one in my opinion 

 does not pertain to the family, and another may not. Of the remaining 

 31 names, 3 were preoccupied, and 12 are considered synonyms. In the 

 purview of this paper, therefore, 16 generic names are held entirely valid ; 

 of which 9 were monobasic, and 7 had their type species subsequently 

 assigned. 



♦Sometimes with a so-called supernumerary cell, on outer apical margin of wing, 

 nearly or quite enclosed. (Notus, Erythria.) 



i Homa Distant, said to be related to Empoasca, differs from the other genera in 

 this section by having the pronotum shorter than vertex. 



t This is hardly the true systematic position of this genus, which is nearer the other 

 Jassoidea in the venation of tegmen than any of the remaining genera of 

 Eupterygidae. More probably it should be regarded as belonging to a different line of 

 descent from groups B, BB, C, and CC, having the tegminal venation more primitive, 

 and the wing venation comparatively much simplified, which we take to be an evidence 

 of specialization. 



$ The characters separating these genera, while much the same as those upon which 

 Fieber established Kybos and Chlorita (now considered synonyms of Empoasca) , seem 

 to hold, especially that of the fourth apical vein. If found unstable, it will be necessary 

 to range Erythroneura with all its synonyms under Typhlocyba, as done by Gillette- 

 This would result in a series of seven synonymous names. 



