50 BRITISH CICADA. 



with a rather conspicuous orange spot below the scu- 

 tellum. Legs 'paler than in discreta. Frons brown, 

 with ochreous keels. 



Var. discreta, Edw., Plate XV., fig. 7. Male dark 

 umber-brown or black. Vertex projecting between the 

 eyes, which are black. Scutellum twice the length of 

 the pronotum, obscurely keeled. Abdomen shining 

 black. Elytra reach to the end of the pygofer. 

 Female much larger. Head and pronotum brown. 

 Keels obvious. Elytra with spotted nervures. Abdo- 

 men rounded at the apex and obscurely banded with 

 rufous. Legs brown. 



The styles of both the pygofers of these insects 

 appear to be double, — that is to say, they occur in two 

 pairs, one above the other. 



LiBURNiA DISCOLOR, Boli. Plate XIV., figs. 8 to 12. 



Delphax discolor, Boh. ; Flor; Fieb., G. D. t. 8, fig. 19. 



,, j^atens, Kirschb. 

 Liburnia discolor, Scott; Sahib. ; Fieb., C. E. pt. iv. 3; 



Edw. pt. i. 79. 



Macropterous male. Black ; vertex and antennae 

 dirty ochreous. Eyes large. Frons black, with three 

 strong yellowish undivided keels, which pass over the 

 vertex so as to mark out five dark spots above. Pro- 

 notum with dusky centre and sides. Scutellum pointed 

 below, and double the length of the pronotum. Abdo- 

 men umber-brown, with spots and bands black. A 

 dusky ochreous spot occurs below the scutellum, with 

 a round encircled spot in the midst. Legs stout and 

 black. Elytra rather larger than the abdomen, rounded 

 at their tips, which are bordered by a strong nervure. 

 Veins dark brown and studded with dots. Membrane 

 fuscous and bronzy, transversely wrinkled. Wing 

 wanting. Pygofer large, with a deep notch within, from 

 which a curious cruciform anal process protrudes, with 

 long sinuous and tapering styles. Under-side dark 



