230 [March, 



trata, H.-Sch. These lie afterwards abandons, and consigns to the 

 genus TJiamnotettix, Zett., and in his " Kat. der europaischen Cica- 

 dinen" (1S72) adopts C. cyance, Boh., as his type. In the Catalogue 

 he has referred the seyeral species of Zetterstedt's genus to various 

 genera which I partly adopt in the present instance. As I riew 

 matters, we at present possess four species, of which one is new, and 

 whether it is the insect standing in Pieber's Catalogue under the name 

 G. frontalis, I have no means of ascertaining, as the specimen I sent 

 him for determination some years ago never was returned, nor is there 

 even a sketch of it amongst those in the possession of M. L. Lethierry. 

 I may add that it is very possible for Boheman's beautiful species, 

 C cycmce, to be added to the list by some one who has the good fortune 

 to live near where water-lilies grow, to which plants, he says, that 

 species is attached. 



In the table, which follows hereafter, I give sufficient characters 

 to determine any of the species, O. sexnotata is, perhaps, the com- 

 monest of British Somoptera. C. variata comes next, but *l-notata has 

 only, to my knowledge, been taken by the late Mr. T. J. Bold and the 

 Eev. T. A. Marshall. 



CICADULA, (Zett.) Scott, Fieb., p., nee J. Sahlberg. 



Head — crown .- anterior margin gently rounded, scarcely acuminate in the centre, 

 length about equal to half the width between the eyes on the concave basal 

 margin, ^yes, viewed from above, spherical triangular ; outer margin pro- 

 jecting beyond the sides of the pronotum. Ocelli on the anterior margin, near 

 each eye, and visible from above. Face convex, about as long as between the 

 eyes measured on the frons. Clypeus : apex reaching to or very little beyond 

 the lower margin. LorcB sub-oval. AntenncB placed in a small cavity at the 

 lower corner of each eye. 



Thorax — pronotum twice as broad as long ; posterior margin straight or vei-y faintly 

 concave, rounded towards the shoulders ; lateral margins convex. Scutelliim 

 triangular, apex acute. Elytra with four apical areas ; the first transverse nerve 

 dividing the ante-apical from the apical area at, or close to, the apex of the 

 claval suture. 



Abdomen : $ , last genital segment above with a projecting tube of greater or less 

 length ; underneath, genital valve triangular, its base extending across the 

 entire breadth of the abdomen ; genital plates long, triangular, outer margin 

 sometimes convex. 



Section A. 



Crown, with six black spots, the two on the anterior margin largest, and continued 



on to the frons, frequently the spots are united. Face witli transverse black 



streaks. Elytra yellowish, with more or less distinct, fuscous, longitudinal 



' streaks between the nerves ? 1. sexnotata, Ya\\. 



