10 BRITISH CICADiE. 



white elj^al membrane, as to leave little more visible 

 than these four vs^hite spots on a dark brown ground. 



It may, perhaps, come under Mr. Edwards's var. a, 

 p. 22 of his Synopsis. 



AcocEPHALUs HisTRioNicus, Fcib. Plate XL., fig. 4, 

 and Plate XLL, fig. 2 to 2 b. 



Cercopis histrionicus, Fab. 



Acocephalus histrionicus, Flor; Marsh.; Kirschb. ; 



Sahib. ; Sign., Ess. Jass. p. 84, pi. ii. fig. 16 ; 



Edw. pt. ii. p. 23. 

 Acocephalus arenicola, Marsh. 

 ,, costahis, Walk. 



Male. General colour, yellow. Head obtusely 

 pointed. Vertex longitudinally striated, and shorter 

 than the pronotum and the scutellum taken together. 

 Ocelli nearer the eyes than the vertical apex. A brown 

 irregular stripe occurs before the faintly carinated 

 vertex, which also shows a straighter stripe below. 

 Scutellum black, trimaculate with yellow. Elytra 

 yellowish, hyaline, with an indistinct brown venation. 

 A straight brown band crosses them near their apices, 

 which is best seen when the wings are closed. 

 Abdomen black, with yellow borders. Genital plates 

 acuminate, black, pubescent, and three times longer 

 than broad (Sign.). 



Size, 0"13 inch, or 4-0 millimetres. 



Female. Larger than the male, wdth the vertex 

 longer. Pronotum transversely striated. General 

 colour dirty olive-green or ashy-grey. Scutellum 

 shorter than the pronotum. Elytra membranous, finely 

 corrugated, and obscurely banded with brown. Wings 

 ashy-grey. Pygofer notched, enclosing a small cauda. 



Size, 0-16 inch, or 4*5 millimetres. 



This is a well-marked species, but not common in 

 Britain, where it is found on sandy coasts. Taken also 



