MEMBRA ClBAE. 
245 
Genus : CENTROTUS. 
Cicada cornuta, Linn. Syst. Nat. p. 435. C. fusca, De Geer, Mem. Ins: iii. p. 181. Centrotus 
cornutus, Fab. Syst. Rhyng. p. 16 (1803). Stal, l.c. p. 88 (18GG). Fairm. Centrotus, l.c. p. 509. 
Walk. l.c. p. 610. 
Stal says, “ Tegmina furnished with three apical areas, the hind process of the 
pronotum distant, with the base curved or geniculate. Hind trochanters unarmed, 
lateral horns of the pronotum moderate, gradually acuminate, £ extrorsum vergen- 
tibus.’ ” 
Only two genera of Membracidae have been hitherto noted on the Continent of 
Europe, viz., Centrotus and Gargara. The latter may be distinguished by being 
without, or with only obsolete, suprahumeral processes, and by the short posterior 
horn. 
CENTROTUS CORNUTUS. 
(Plate LYI. figs. 7, 7a. 7b.) 
Fieber, Cicada, p. 334. Buckton, Centrotus, Brit. Cicada, pt. ii. p. G. L. Melichar, Centrotus. 
Cicadinen, von Mittel-Europa, pp. 15, 16 (189G). 
This species has been often described, yet here it maybe said to be in colour dark 
brown and deeply punctured. The suprahumerals connate, short, and slightly 
recurved, the posterior horn sinuous, with a swelling, nodular protuberance on the 
under surface. The legs are moderately long and ferruginous. The tegmina with 
five apical areas and three discoidals are warm brownish in tint, the wings are 
hyaline. 
The presence of such a node would suggest a reference to Campylocentrus, but 
the insect cannot well be separated from the genus established so long b} r Fabricius. 
This species extends over all Europe, including Norway, Sweden, parts of 
Russia and Siberia, France, England, Spain, and Italy. I have received eighteen 
examples from Brockenhurst, in Hampshire, and other specimens from Essex and 
Kent. 
Fieber describes as many as eight varieties occurring in continental Europe, 
doubtless climatic as to their small differences in form. 
De Geer and Reaumur remark that the French peasants in their times gave the 
name of “ le petit diable ” to the uncouth horned appearance of this insect when seen 
from the front aspect. 
The British Museum contains species closely allied to the type of Centrotus cornutus 
from all parts of the Old World. Thus we have them from Hong Kong, N. China, 
2 K 
