478 Mr. W. L. Distant on Hoinop'tera. 



LXU.—Rhijnchotal Notes.— XXXll. By AY. L. Distant. 



Fani. Cicadidae (contimied). 



Subfam. TiBiciNTNJS. 

 Division H Y A N T i A ii I A. 



In this division the lateral margins of the pronotum are 

 oLlique, not dilated; the abdomen is broad and robnst, its 

 dorsal surface centrally obtusely longitudinally ridged, its 

 lateral areas obliquely depressed on each side, its apex 

 narrowed; the tympana arecom|jletely exposed, the tympanal 

 coverings being entirely absent ; the opercula in the male are 

 short, transverse, not extending beyond the base of abdomen ; 

 the metasternum is central I3' globosely elevated and poste- 

 riorly terniinates in two sj^nous prolongations placed between 

 the posterior coxeb ; the anterior femora are spined beneath ; 

 the tegmina and wings are hyaline and usually more or less 

 maculate. 



At present the Hyantiaria comprises three Neotropical 

 genera. 



Synopsis of Genera. 



A, Posterior pronotal angles dilated. 



a. Head with the front long and prominent ; longer than 

 vertex. 

 b. Basal cell of tegmina scarcely longer than broad .... Quesada. 

 aa. Head with the front not prominent, much shorter than 

 vertex. 

 bb. Basal cell of tegmina considerably longer than broad. Miira. 



B. Posterior pronotal angles not dilated. 



aaa. Head with the front not prominent, a little shorter 

 than vertex. 

 hbb. Basal cell of tegmina a little longer than broad .... Hunniia. 



Quesada, gen. nov. 



Body broad and robust; head (including eyes) about as 

 wide as base of mesonotum and about as long as pronotum 

 without its posterior margin, front broad and prominent, 

 longer than vertex ; pronotum about as long as mesonotum, 

 its lateral margins oblique, the posterior angles moderately 

 dilated; mesonotum a little convex ; abdomen short, broad, 

 very little longer, sometimes only as long as space between 

 apex of head and base of crucitbrm elevation, its apex more 

 or less attenuated; tympanal oritices entirely exposed, 

 tympanal fl;ips altogether absent; abdomen beneath a little 



