64 Mr. James Edwards’ Synopsis of 
2. Thamnotettix dilutior, Kbm. 
Thamnotettix dilutior, Kirschb., Cicad., 92, 20. 
Athysanus dilutior, Scott, Ent. Mo. Mag., xii., 99, 11. 
Crown, pronotum, and scutellum yellowish white, generally 
with indistinct rust-yellow markings. Crown (with the eyes) 
almost crescent-shaped, obtusely produced in front, less so in the 
female than in the male, its length down the middle about one- 
fourth longer than half its basal width, in the male one-third, in 
the female about one-half, longer in the middle than at the sides. 
Frons brownish yellow, with pale side-lines. Pronotum about 
one-third longer than the crown. Elytra greyish yellow, some- 
times with a few isolated blackish spots or suture narrowly 
blackish, or a black spot in the apex of the clavus; nerves fine, 
whitish. Abdomen above in the male black, hind margins of the 
segments narrowly pale, genital valve semicircular; in the female 
yellow, sometimes with the base of the segments more or less 
widely black. Legs pale yellow, striped, spotted, and sometimes 
banded with black. Length, 6—6} mm. 
Not uncommon on oaks. 
9. Thamnotettix subfuscula, Fall. 
Cicada subfuscula, Fall., Hem. Suec., ii., 44, 81. 
Thamnotetiiz subfuscula, Zett., Ins. Lapp., 294, 8; 
; J. Sahl., Not. Fenn., xii., 218, 10. 
Jassus subfusculus, H.-Seff., Deuts. Ins., 180,4; Germ., 
Faun. Ins. Eur., xvi., 19; Flor, Rhyn. Liv., ii., 
354, 21; Marsh., Ent. Mo. Mag., ii., 85, 25; 
Kirschb., Cicad., 93, 21; Thoms., Opusc. Ent., 
1., 49, 8. 
J. pectoralis, Germ., Mag. d’Ent., iv., 91, 80; Burm., 
Handb. a... 011 5: 
Athysanus subfusculus, Scott, Ent. Mo. Mag., xii., 99, 
10; Reut., Medd. Faun. Flor. Fenn., v. (1880), 
226, 88; Ferrari, Cicad. agri Ligust., 56, 15 and 
58, 180. 
Upper side yellow-brown, suture of elytra frequently blackish. 
Crown in the male as long as half its basal width, about one-third 
longer in the middle than at the sides; in the female about one- 
third longer than half its basal width, nearly twice as long in the 
middle as at the sides; free sides nearly straight and angle blunt 
in both sexes ; interocular line, when present, widened and inter- 
rupted in the middle; interocellar line widened, angular, and 
