58 Mr. James Edwards’ Synopsis of 
Coxford Heath, Norfolk; one example, August, 1887. 
This insect is clearly a Deltocephalus of the argus group ; 
it has nothing in common with D. coronifer, Marsh., 
next to which it is placed by Fieber in the genus 
Thamnotettia, except the pattern on the forehead. 
22. Deltocephalus maculiceps, Boh. 
Deltocephalus maculiceps, Boh., Sv. Ak. Handl., 1847, 
25, 2: Marsh., Ent. Mo. Mag., i1., 267, 12; 
Kirschb., Cicad., 124, 80; Fieb., Syn. Eur. 
Delt., 18, 50, fig. 58; J. Sahl., Not. Fenn., xii. 
350, 87; Scott, Ent. Mo. Mag, xu., 241, 4. 
Jassus maculiceps, Thoms., Opuse. Ent., i., 74, 63. 
Oblong-ovate; upper side dirty greyish yellow, crown with two 
large roundish black spots in front. Crown as long or shorter 
than its basal width, about one-third longer in the middle than at 
the sides, free sides distinctly arcuate, angle very blunt. Frons 
blackish, with the upper part and the side-lines pale. Pronotum 
distinctly, sometimes almost one-third, shorter than the crown. 
Elytra subpellucid, rounded at the sides. Abdomen black, upper 
side at the apex more or less widely yellow in the female. Legs 
pale, base of the thighs marked with black, hind tibie black, 
except at the base. gi; genital plates about three times as long 
as the valve, their outline paraboloid; elytra much longer than 
the abdomen. 9; last ventral segment black, with a subquadrate 
greyish yellow spot in the middle of its hind margin, or greyish 
yellow with a pair of wide black stripes converging towards the 
base; the outline of its hind margin forms two large rounded lobes, 
separated by a short straight line. Length, 2; mm. 
Not common; my specimens were taken amongst low 
plants on the more bare parts of a wet heath near 
Norwich. In highly-coloured examples the costa and 
inner margin of the elytra are narrowly black, the 
nerves are brown, and the interocellar line is represented 
by a pair of black points on the apex of the crown. 
23. Deltocephalus pulicaris, Fall. 
Cicada pulicaris, Fall., Hem. Suec., ii., 834, 15; Zett., 
Ins. Lapp., 291, 12. 
Jassus pulicaris, H.-Seff., Deuts. Ins., 127, 4; Thoms., 
Opusc. Ent., 1., 74, 64. 
