British Homoptera-Cicadina. 103 
nerves, and those on the basal half of the membrane, margined 
with fuscous. On the costa near the middle a short oblique black 
line. Abdomen yellowish white, the basal segments more or less 
widely black. Length, 3} mm. 
Common on oaks. 
14. Typhlocyba nitidula, Fab. 
Cicada nitidula, Fab., Ent. Syst., iv., 48, 87; Sys. 
Rhyn., 79, 88. 
Typhlocyba bifasciata, Boh., Ofv., 79,39 (1853). 
T. nitidula, H.-Seff., Deuts. Ins., 164, 10 and 16; 
Flor, Rhyn. Liv., ii., 407, 18; Kirschb., Cicad., 
185, 20; J. Sahl., Not. Fenn., xii., 177, 5. 
Hupteryx nitidulus, Marsh., Ent. Mo. Mag., ili., 247, 
138. 
Anomia nitidula, Leth., Cat. Hem. Nord., ed. ii., 78; 
Fieb., Cicad. d’Hur. (Typhlocybint), 59, 3. 
A. Norgueti, Leth., l. ¢. 
Pale yellow; the scutellum, a broad band across the base of the 
elytra, and another across the apex of the corium, blackish brown. 
Membrane whitish hyaline. Claws fuscous. Length, 34—33 mm. 
This species sometimes swarms on broad-leaved elms, 
but is very uncertain in its appearance; I once took it 
in quantity on Lombardy poplar. A variety of un- 
common occurrence (A. Norgueti, Leth.) has the space 
between the two bands on the elytra filled up with 
blackish brown. 
15. Typhlocyba geometrica, Schr. 
Cercopis geometrica, Schrank, Faun. Boic., il., 57, 
1076. 
Tettigonia geometrica, Germ., Faun. Ins. Kur., 12, 18. 
Cicada lineatella, Fall., Hem. Suec., ii., 54, 50. 
Cicadula lineatella, H.-Scff., Deuts. Ins., 148, 8, and 
164, 16. 
Typhlocyba plagiata, Hardy, Trans. Tynes. F. C., 1., 
416, 1. 
T. geometrica, Flor, Rhyn. Liv., ii., 408, 19 ; Kirschb., 
Cicad., 186, 21; J. Sahl., Not. Fenn., xii., 178, 7. 
Eupteryx geometricus, Marsh., Ent. Mo. Mag., iii., 
247, 14. 
Anomia geometrica, Leth., Cat. Hem. Nord., ed. iL, 
73; Fieb., Cicad. d’EKur. (T'yphlocybint), 61, 6. 
