182 



C I A D I D iE. 



Gen.? humeralis. \ Colonibia. 



Cicada htiiiiendis, ^\'alk. Insect. Suund., Iloni. 



p. 15 (1858). 

 Gen. ? JmmeraUs, Dist. Ann. Mag. Nat. Hist. (7) 

 xvi. p. 504 (1905). 



Division IIEMIBICTYARIA. 



Jlemididi/aria, Dist. Ann. Mag. Nat. Hist. (7) xvi. p. 275 (1905). 



Si/)iopsis of Genera*. 



A. Venation of tegmina normal, not reticulate. 

 a. Front of head triangular, deeply and angularly inserted 

 in vertex. 

 b. Head longer than space between eyes. 



c. Ocelli placed as near eyes as to each other. 



d. Apical areas of tegmina and wings almost as long 



as half tlieir length Arfaka. 



aa. Front of head conical, moderately but not angularly 

 inserted in vertex. 

 hb. Head about as long as space between eyes. 



cc. Ocelli placed nearer to each other than to eyes. 

 dd. Apical areas of tegmina and wings shorter than 

 half their length. 

 e. Lateral margins of pronotum more or less 

 sinuate. 

 f. Fourth ulnar area of tegmina of normal shape. 

 ff. Fourth ulnar area of tegmina with its 

 anterior margin at base of third ulnar area 

 inwardly angulated and emitting a short 



rudimentary vein 



ee. Lateral margins of pronotum obliquely straight. 



ccc. Ocelli placed a.s near to eyes as to each other. 



ij. Tegmina witli the first ulnar area much longer 



than third ; luurth ulnar area much shorter 



than radial area. 



h. No rudimentary vein at base of second ulnar area. 



yy. Tegmina with the first ulnar area about as long 



as third ; fourth ulnar area about or nearly as 



long, or a little longer than radial area. 



lih. Kudimentary vein at base of second ulnar area 



connecting it more or less imperfectly with 



apex of fifth ulnar area, sometimes almost 



obsolete Lemhja. 



]>. Venation of tegmina more or less reticulate. 



i. Bases of upper vein to lower ulnar area and lower vein 



of radial area not amalgamated, the first alone emitted 



from end of cell, contiguous to emergence of second . . Ci/stosoma. 



a. Bases of upi er vein to lower ulnar ai'ea and lower vein 



of radial area auialgamated. 



j. Reticulate area of tegmina not more than half their 



lengtii and shar])ly detiiud by a transverse line . . He mid id y a, 

 jj. Ileticulate area of tegmina more than half their length 



and not defined by a transverse line Hovana. 



* Lacetas, Karsch, evidently belongs to this division, but I have not yet 

 seen a representative of the genus. 



Sapantanya. 



Jacntra. 

 Iruana, 



Prasia. 



