228 [November, 



the segments black ; last genital segment black beneath, next the exernal pro- 

 cesses yellow, the latter more or less brown towards the apex, sparingly clothed 

 "with short, pale hairs ; base yellowish-white. 

 9 usually without a black or brown triangular spot at the base of the sciitellum. 



Sometimes entirely green ; or brown or recldisli-brown, witli the 

 head, pronotum, scutellum, and base of the clavus, broadly green or 

 greenish-yellow ; or entirely brown, excepting the base of the clavus, 

 which is greenish or yellowish-white ; or head, pronotum, and base of 

 the clavus, green ; scutellum yellow, with a brown triangular spot at 

 each basal angle. Elytra : nerves piceous or black. Coriuvi : disc 

 clear, semi-transparent ; base, a small space round the transverse 

 nerves and the membranal areas piceous. Leffs black. 



Length, 1| — 2} lines. 



Common on birches and alders everywhere, from June to Sep- 

 tember. 



Genus FUBIOFSIS, Burm. 



In form, exceedingly like the genus Bijtlwscopus ; but the angle 

 of the basal margin of the crown is more acute, the anterior portion 

 of the pronotum fi-om the centre to the lateral margins more steep, 

 and the disc finely crenulated. The crenulation (more or less in 

 certain species) runs diagonally in little and somewhat convex (towards 

 the posterior margin) streams from the centre of the anterior margin 

 towards the posterior angles. The external processes also are longer 

 than in Sytlioscojnis. Tieber enumerates seventeen species as Eviro- 

 pean, and, although I am about to add considerably to the number of 

 previously recorded British species, I have a conviction that there are 

 still more to follow. 



Species 1. — Pediopsis tilije. Germ. 



lassus tilice, Germ., F. Ins. Eur., 14, 14. 



JPediopsis tilicB, Plor, Ehyn. Livl., vol. ii, 183, 1 ; Eieb., Vcrhandl. d. 



k. k. zool.-bot. Gesell, 457, 1 (1868) ; Kirschb., Cicad., 175, 9 ; 



Thomson, Opusc. Ent., fasc. iii, 317, 1. 



A. Face unspotted. 



$. Head and pronotum yellow or greenish-yellow. Flytra pale 

 brownish-yellow, with numerous small brown spots, especially 

 towards the apex. 



Sead yellow or gi'eenish-yellow. Face, next the base, finely crenulated, in the centre 

 somewhat coarsely punctured ; from the base to about in a line with the middle 

 of the eyes is a faint, central, longitudinal keel. 



