British Homoptera-Cicadina. 55 
separately pointed, less than half as long as the trapeziform 
genital valve. @3; hind margin of the last ventral segment simple, 
feebly concave. Length, 3}—3} mm. 
Very abundant amongst grasses in a variety of 
situations. Varieties in which the inner areas of the 
elytra are entirely filled up with black are not un- 
‘common. The salt-marsh form is smaller, with the 
elytra scarcely as long as the abdomen, and hardly any 
traces of dark margins to the areas. 
17. Deltocephalus Normani, Scott. 
Deltocephalus Normani, Scott, Ent. Mo. Mag., xviii., 
105. 
3. Closely allied to D. striatus, to the pale forms of which it 
bears a very great resemblance. Upper side very pale yellow- 
brown, a stripe down the middle of the crown and pronotum, and 
the costal and three innermost apical areas, white. Elytra as long 
as the abdomen. The genital valve and plates are like those of 
D. striatus, save that the apices of the latter in the original 
example are a trifle more oblique within. 2; elytra shorter than 
the abdomen; nerves of the clavus dark brown. Length, 
o—3t} mm. 
“High heathery land in Morayshire” (one male, two 
females). The shape of the last ventral segment in the 
female is undescribed, and I have not been able to 
examine a specimen of that sex. The insect is probably 
one of the many forms of D. striatus. 
18. Deltocephalus punctum, Flor. 
Deltocephalus punctum, Flor, Rhyn. Liv., ii., 247, 8; 
Marsh., Ent. Mo. Mag., 11., 251, 6; Kirschb., 
Cicad., 146, 25; J. Sahl., Not. Fenn., xii., 320, 
14; Scott, Ent. Mo. Mag., xii., 271, 10. 
D. costalis, Fieb., Syn. Eur. Delt., 4, 4, fig. 4. 
Crown almost one-third longer than its basal width, nearly twice 
as long in the middle as at the sides, free sides straight, angle 
pointed; yellowish grey with three linear white stripes, interocellar 
line represented by a very fine fuscous line on each side of the 
apex. Frons yellowish grey, the interstices of the white side-lines 
brown. Pronotum about one-half as long as the crown, yellowish 
grey, with five linear white stripes. Elytra whitish hyaline, 
