FAM MEMBRACIDiE aSy 



process; metopidium vertical, about as broad as high; median carina percurrent ; humeral angles large, 

 triangular and pointed; suprahumeral horns stout, tricarinate, as long as the distance between their 

 bases, extending outward and upward, tips sharp; posterior process sinuate, tricarinate, arising above 

 the scutellum and extending backward over the body, not touching the tegmina, tip acuminate and 

 extending just beyond the internal angles of the tegmina; scutellum entirely exposed, subtriangular, 

 a little longer than its breadth at base, tip broadly notched. Tegmina short, broad and hyaline; base 

 coriaceous and punctate; veins heavy ; five apical and two discoidal cells; tip roundly pointed; apical 

 limbus broad. Hind wings with four apical cells. Legs simple; femora cyhndrical; tibias triquerate 

 and finely spined; hind tarsi longest. 



Type naturalis Distant. 



Geographical distribution : This is entirely an African genus and has been reported from no 

 other continent. 



1. leptocentraria Distant, Ins. Trans. 214 (1908). Africa, Transvaal. 



2. naturalis Distant, Ins. Trans. 214 (1908). Africa, Transvaal. 



3. e)6oWM5 Distant, Rhynch. Notes 42 (1916). — Pl. I 2, flg. 205. Africa, Transvaal, Pretoria, 



Waterberg, Belgian Congo. 



4. undulatus Distant, Rhynch. Notes 824 (1916). Africa, Mashonaland, Salis- 



bury, Barberton. 



232. Genus POLONIUS DISTANT 



Polonius Distant, Rhynch. Notes 291 (1916). 



Characters : The type species of this genus, which is the only species in the genus, might not 

 at iirst glance be distinguished from a species of Tricentrus but the hind trochanters are unarmed, the 

 posterior process is raised slightly above the scutellum and the apical veins of the tegmina are shghtly 

 curved. The vahdity of the genus may be questioned but the characters as shown by the type species 

 which may be generic are as follows : Head subquadrate, broader than high ; base arcuate ; eyes large 

 and ovate; ocelli small, inconspicuous. about equidistant from each other and from the eyes and situated 

 a little above a line drawn through centers of eyes; inferior margins of gense nearly straight; clypeus 

 broad, extending for half its length below inferior margins of genas. Pronotum convex, bearing short, 

 strong suprahumerals and a short, straight posterior process; metopidium sloping, wider than high; 

 median carina percurrent; humeral angles large, triangular and blunt; suprahumeral horns stout, 

 sharp, no longer than the distance between their bases, extending outward and upward and curving 

 backward ; posterior process short, straight, slightly elevated above the scutellum, strongly tricarinate, 

 tip acuminate and not quite reaching the internal angles of the tegmina; scutellum largely exposed, 

 triangular, about as long as broad. Tegmina long, narrow, subhyaline ; basal and costal areas strongly 

 coriaceous and punctate ; veins of apical area curved; tip roundl}' pointed ; apical limbus well devel- 

 oped. Legs simple and very strongly pilose ; hind tarsi longest. 



Type biseratensis Distant. 



Geographical distribution : This genus is known only from the type species from Malaya, 

 I. biseratensis Distant, Rhynch. Notes 291 (1916). — Pl. I 2, fig. 206. Siamese Malay States, Biserat. 



