Mr. W. L. Distant on Homoptera. 203 



XXY.—Rk>/nchotal Notes.— XXXIY. By W. L. DISTANT. 



Fam. Cicadidae (continued from p. 35). 



Subfam. TiBiciNiNji (continued). 



Division Parnisaria. 



This division or large group of genera is allied to that of 

 Taphuraria, from which it primarily differs by the size and 

 position of the eyes, wliich do not project (or, at least, not 

 distinctly so) beyond the anterior angles of the pronotum ; 

 the abdomen is usually short, except in a few cases, not 

 longer than the space between the apex of head and base of 

 cruciform elevation. 



Parnisaria includes a number of genera widely but sparingly 

 distributed in all the great zoogeographical regions ; in the 

 Palasarctic region apparently confined to its extreme eastern 

 area. 



Henicotettix, the type of which I have not seen, probably 

 comes in this group of genera, but is to be recognized by the 

 character — " Tibia? anticse ultra insertionem tarsorum in 

 spinani producta?.'" 



Synopsis of Oenera, 



1. Tegmina and wings -with reticulate venation, giving 



the appearance of numerous cellular areas Arcystasia. 



2. Tegmina with six, wings with four apical areas .... Darotettix. 



3. Tegmina and wings with the venation normal, not 



reticulate. 

 A. Wings with six apical areas. 



a. Head (including eyes) more or less narrower than 

 base of mesonotum. 

 b. Tegmina about or nearly three times as long 

 as greatest breadth, costal margin above 

 radial area neither curved nor gibbous ; basal 

 cell generally about twice as long as broad. 

 c. Head with front not prominently projecting, 

 about as broad as length of vertical margins ; 

 margins of both more or less continuous. 

 d. Tegmina with the first and second apical 



areas longer than eighth Qumtilia. 



dd. Tegmina with the first and second apical 



areas very short, not longer than eighth . Psilotympana. 

 cc. Head with front strongly projecting, nar- 

 rower than length of vertical margins, 

 which are convex ; margins of both discon- 

 tinuous, almost at right angles to each other. 

 «. Tegmina about twice as long as broad ; 

 abdomen longer than space between apex 



