British Homoptera-Cicadina. 21 
A. interruptus, Fieb., Cat. nee Scott, Ent. Mo. Mag., 
ix., 264. 
Jassus trifasciatus, Germ., Mag. d’Ent., iv., 87, 21. 
Acocephalus trifasciatus, J. Sahl., Not. Fenn., xii., 
358, 8; Sign., Ess. Jass., 24, 5, pl. ii., fig. 10. 
A. dispar and nigritus, Kirschb., Cicad., 76, 5 and 6. 
A. tricinctus, Curt., Brit. Ent., 620; Sign., Ess. Jass., 
22,4, pl. i., fig. 9. 
gf. Upper side dark red-brown, varying to blackish brown; a 
band across the pronotum and two wide bands across the elytra 
white. Crown tricarinate, at least one-third longer than pronotum, 
strongly reflexed at the apex, the sculpture of its dise spreading 
obliquely on each side of the middle keel; that beyond the side 
keels also oblique. Pronotum uneven, with a scattered shallow 
punctuation in front, even and finely transversely striate behind. 
Elytra very finely reticulato-punctate, with a scattered shallow 
punctuation, about as long as the abdomen, rather narrowly 
rounded at the apex; one or both of the white bands are not 
unfrequently interrupted, and the apex is often more or less 
broadly white. Frons yellowish white, punctured like the elytra, 
with a large impression in each upper angle. Breast yellowish 
white, metasternum with a blackish spot on each side. Abdomen 
black. Legs pale, front pairs blackish at the apex; hind tibie and 
tarsi black. Length, 33—4 mm. 
@. Upper side pale brownish grey speckled with brown; elytra 
with two more or less interrupted pale bands, the nerves brown. 
Crown tricarinate, nearly twice as long as the pronotum. The 
whole upper side very finely reticulato-punctate, with a scattered 
shallow punctuation. Length, 43—5 mm. 
Not common; more frequent in the north. 
3. Acocephalus albifrons, L. 
Cicada albifrons, Linn., Faun. Suec., 241, 884. 
C. nitidula, Don., Brit. Ins., viil., 87, pl. 288, fig. 1. 
Aphrodes testudo, Curt., Ent. Mag., i., 195. 
A. concinna, Curt., Brit. Ent., 638, 1. 
Acocephalus arcuatus and confusus, Kirschb., Cicad., 
1D, Oo, and (os, LL 
A. albifrons, Flor, Rhyn. Liv., ii, 208, 3; Marsh., 
Hint. Mo. Mag., u1., 177, 3; J. Sahl., Not. Fenn., 
xil., 360, 5; Sign., Hiss. Jass., 80, 9, pl. ii, 
fig. 14. 
