W. L. DISTANT— EHTNCHOTA. 81 



Genus Ugada. 

 Uyada Dist. Ann. Mag. Nat. Hist. (7) xiv. p. 299 (1904). 



Ugada grandicollis. 



Cicada graneicollis (err. impr.) Germ, in Thon, Ent. Arch. ii. 2, p. 1 (1830). 

 Between Irumu and Mawambi, E. Congo Forest, 2000 ft. {R. B. Woosnam}.—A well- 

 known West- African species. 



Family Cekcopit)^. 



Subfamily Aphrophorin^. 



Genus Ptyelus. 

 Ptyelus St.-'Farg. & Serv. Enc. M^th. x. p. 608 (1825). 



Ptyelus flavescens. 

 Tettigonia flavescens Fabr. Eut. Syst. iv. p. 24. 30 (1794). 

 Var. a, Stal, Hem. Afr. iv. p. 70 (1866). 



Ruwenzori ((?. F. Scott Elliot). — Widely distributed in Tropical and Subtropical 

 Africa. 



Pttelus grossus. 



Cercopis grossa Fabr. Ent. Syst. iv. p. 47. 1 (1794). 

 Var. a, Stal, Hem. Afr. iv. p. 71 (1866). 

 Var. c, Stal, loo. cit. p. 72. 



Mubuku Valley, E. Ruwenzori, 6000-13,000 ft. ; Fort Beni, Semliki Valley.— 

 Widely distributed in Tropical and Subtropical Africa. 



Pttelus niveus. (Plate II. figs. 2, 2 a.) 

 Ptyelus niveus Dist. Ann. Mag. Nat. Hist. (8) ii. p. 443 (1908). 



Body and legs creamy ochraceous ; pronotum, scutellum, and abdomen above more 

 or less suffused with sti'amineous ; basal antenniferous tubercle, a longitudinal spot 

 near bases of anterior tibiae, anterior and intermediate tarsi, apical fringe of posterior 

 tibiae and claws of posterior tarsi, black ; base of apical joint of intermediate tarsi 

 creamy ochraceous ; tegmina silvery white, opaque, base of costal margin and a short 

 median discal longitudinal line, black, reticulate veins at apical area piceous ; vertex 

 along median line half as long as breadth between eyes, a distinct impression enclosing 

 a small lunate space a little before apex ; face a little centrally longitudinally flattened, 

 laterally transversely striate ; pronotum anteriorly convexly rounded, posteriorly strongly 



VOL. XIX. — PxVRT I. No. 11.— Octoher, 1909. m 



