CERCOPID.E. 77 



" Frontal keels raised and running parallel to the 

 vertex {Scheitel), furrows shallow Four bowl- 

 shaped tubercles {napf fornuge Fastehi) occur beyond 

 the under-sides of the border, and also several others 

 on the side keels of the pronotum. Basal joint of the 

 antenna twice as long as thick, and three-quarters the 

 length of the cylindrical second joint. Frons broad, 

 rectangular, and rather narrower below." 



From the above it would appear that the chief 

 character of Fieber's genus Achrotik consists in the 

 pustules. See my Plate XXL, figs. 2 and 2 a. 



CERCOPIDiE. 



Frons gibbously convex. Ocelli two, placed on the 

 vertex between the eyes. Antennae inserted before 

 and between the eyes, and just under the vertex. 

 Pronotum notched at the base. Scutellum small, or 

 moderate in size. Front femora unarmed, and not 

 thickened. Hind tibiae furnished with one or three 

 spines on the shanks, and provided with a crown of 

 strong spines at their bases, just above the tarsi. 

 Tarsi with distinct claws and pulvilli. Elytra coria- 

 ceous, punctured, and folded pentwise. Non-limbated. 

 Wings with three apical cells, bounded by a peripheral 

 vein. 



Sahlberg describes the Norwegian and Swedish 

 species under five genera. The British species at 

 present are restricted to only three, viz. — 



I.— TEIECPHOKA, Am. S Servlr. 

 IL— APHROPHORA, Germ. 

 III.— PHILiENUS, Stal. 



Perhaps the most obviously distinctive character of 

 the British Cercopidae is the form of the stout hind 

 femora and tarsi, each furnished with its whorls of 

 spines. A guide also to tlie separation of species may 



