British Homoptera-Cicadina. 57 
20. Deltocephalus costalis, Fall. 
Cicada costalis, Fall., Hem. Suec., ii., 82, 12. 
Jassus costalis, Thoms, Opuse. Ent., 1., 69, 52. 
Deltocephalus bipunctipennis, Boh., Sv. Ak. Handl., 
1845, 261,51; Fieb., Syn. Eur. Delt., 3, 1, fig. 1; 
J. Sahl., Not. Fenn., xii., 348, 35. 
Elongate; upper side white, elytra towards the apex pale 
reddish brown, a deep black roundish spot in the first and fourth 
apical areas. Crown without markings, subequal in length to its 
basal width, about one-third longer in the middle than at the 
sides, free sides strongly arcuate, angle blunt. Face, breast, and 
legs white, the latter with some black points. Pronotum as long 
as the crown. Elytra parallel-sided, longer than the abdomen, the 
apex subtruncate; nerves white. Abdomen yellow, more or less 
marked with black in the middle towards the base both above and 
below. 3 genital plates at least three times as long as the 
valve, with a large common roundish black spot in the middle. 
@; hind margin of the last ventral segment nearly straight, 
with an angular black-bordered notch in the middle. Length, 
38—3i mm. 
Marshes, Ranworth, Sept. 30th, 1886. This is its 
first record as a British species. 
21. Deltocephalus coroniceps, Kirschb. 
Deltocephalus coroniceps, Kirschb., Cicad., 126, 84. 
Thamnotettix coroniceps, Fieb., Cicad. d’EKur. (Thamno- 
tettix), 70, 10. 
3. Upper side dirty greyish yellow, with some ill-defined 
whitish markings on the crown, pronotum, and scutellum; fore- 
head and temples with a black band bearing about nine equidistant 
whitish spots, of which each ocellus forms one; frons with a few 
irregular blackish transverse curved lines. Crown a trifle shorter 
than its basal width, one-half longer in the middle than at the 
sides, free sides feebly arcuate, angle blunt. Pronotum subequal 
in length to the crown. Elytra longer than the abdomen; mem- 
brane amplé; nerves whitish, feebly and irregularly margined 
with fuscous. Abdomen pale, with black markings. Genital 
valve very widely rounded, about half as long as the preceding 
segment; plates large and wide, their joint outline almost semi- 
circular, and their inner margin rather more than twice as long as 
the valve. Length, 3} mm. 
