301 Mr. W. L. Distant on Homoptera. 



XXXYL—Iihi/nchotal Notes.— XXX. By W. L. Distant. 



Subfam. CicAviyjj: (continued from p. 70). 



Division Lahugadaria. 



This division is primarily divergent from Dunduhi'aria by 

 the non-dentate Literal margins of the pronotum ; the t^-m- 

 pana are completely covered, the tympanal flaps broader than 

 long ; the opercula short, somewhat globose, wider than 

 abdonoinal margin, and distinctly visible from above. 



LahuGADA, gen. nov. 



Head (inclnding eyes) considerably narrower than base of 

 mesonotum, its length about equal to space between eyes, its 

 lateral margins discontinuous, the lateral margins of front 

 being almost at right angles to those of vertex ; pronotum 

 almost as long as mesonotum, narrowed anteriorly, the poste- 

 rior angles prominent and rounded ; abdomen considerably 

 longer than space between apex of front and base of cruci- 

 form elevation ; tympana completely covered, tympanal 

 coverings broader than long ; opercula short, somewliat 

 globose, wider than abdominal margin, and distinctly visible 

 from above ; rostrum about reaching the posterior coxre ; 

 tegmina and wings hyaline, the first with eight apical areas 

 and the basal cell longer than broad. 



Type, L. Dohertiji, Dist. [Pomponid). 



Subfam. G^AyiNJS. 



I propose this subfamily for the reception of a considerable 

 number of genera in which the tympanal coverings are 

 present but imperfect and the tympanal orifices are more or 

 less exposed. 



Three subfamilies may be thus differentiated : — 



A. Tympanal coverings present. 



a. Tympanal coverings entirely concealing tympanal 



oritices Cicadince. 



aa. Tympanal coverings imperfect, more or less exposing 



tympanal orifices Gfeaniut^. 



B. Tympanal coverings absent Tibici7iince. 



Division Cicadatearia. 



In this division the tympanal coverings are rounded ante- 

 riorly, not angulate — either completely covering the oritices 



