DESCRIPTION OF PLATES. 



Plate L 



1 



2 



3 



4 



5 

 () 



rcsto 



7 

 8 



9 



lO 



1 1 



12 



K^ 



'4 



15 

 If) 



Cicadctta tyiiipanisfria. 

 Male genitalia of the same, in profile. 

 Operculum of the same. 



Philaij;ra pari'a, win.u;'. (a little diagrammatic'). 

 J\)lycliactQphycs scrpnUdia, wing (do.). 

 Ihalcctoptcvyx aiistralica, wing (the dotted lines show the 

 red ]:)arts). 



Tlie same, tegmen (do.). 



.Isfori^a sacchan'ridd, nymph. 



The same in profile. 



Miiirclla oxyoimna. n\niph. 



1'he same in ])r(\fi]e. 



Face of the same. 



Coiiosaiiiis hospcs, n\niph. 



Long-winged adult of the same. 



Short-winged adult. 



Tegmen of long-winged form. 



Tegmen of short-winged form. 



Plate n. 



Idioccnts Jiylcorais, vertex. 



F'ace of the same. 



Xcphotcttix plcbciiis, vertex &c. 



F^'ace of the same. 



N. ciiryfits, vertex &c. 



F'aee of the same. 



Hiiriiioscopiis Icntigiiiosits, vertex &c. 



Face of the same. 



Priotiiru aristarchc. 



F'ace of the same. 



Ncphotcttix apicalis, tegmen. 



Face of the same. 



Tharra sp., nymph in profile. 



