X, D. 6 Funkhouser: Review of the Philippine Membracidx 383 



Sertorius erigens Walk. 



Centrotus erigens Walk., List Horn. Brit. Mus. (1851), 614. 

 Sertorius erigens Stal, Hem. Phil. (1870), 727. 



Black; head and pronotum roughly punctured. Head nar- 

 rower than anterior pronotum, wider than long. Pronotum 

 convex, slightly ridged, very deep in front, rising vertically from 

 the head; lateral angles obtuse, not prominent. Suprahumeral 

 horns broad, thick, prismatic, diverging, very slightly inclined 

 backward and downward, as long as the space between them; 

 sides conical, slightly and irregularly ridged, of almost equal 

 breadth. Posterior process deep at base, slender and tapering 

 toward apex, triquetrous, slightly curved, extending beyond tip 

 of abdomen. Abdomen tinged with gray. Tegmina blackish 

 brown along the borders, almost colorless in the middle, three 

 fourths of costal border and base punctate. Hindwings almost 

 colorless. 



Length, 10 mm. ; width between extremities of outstretched 

 tegmina, 18 mm. 



This description is adapted from Walker. 



Philippine Islands (Walker, Stal) . 



Genus PERIAMAN Distant 



Centrotus Fabr. (in part) . 



• A genus with species bearing a superficial resemblance to those 

 of Centrotus, but at once distinguished by the four apical areas 

 of the hind wings. Clypeus extending well below the margin of 

 the head; pronotum convex; suprahumeral horns broad and 

 transverse ; posterior process equally as high and extending on a 

 line with the dorsal margin of the metopidium, not extending 

 beyond the internal angle of the tegmina. Tegmina broad with 

 five apical areas. Femora and tibiae simple. 



Distant makes P. flavolineatus Buckt. the type of this genus.^"' 



Periaman brevifrons sp. nov. Plate I, fig. 8, a and b. 



Very dark brown, almost black; densely punctate, sparingly- 

 pubescent; pronotum almost vertical above head; dorsal margin 

 continuing horizontally into the posterior process ; suprahumeral 

 horns short, thick, and heavy, compressed dorsoventrally, ex- 

 tending outward, very slightly upward and backward ; posterior 

 process robust at base, gradually narrowing, sharply carinate 



"Mon. Aus. Memb. (1903), 27. 



^^Bull. Haw. Sug. PL Assoc— Hem. (1907), 3, 90. 



"Fauna of British India— Rhynchota (1907), 4, 37. 



