X, D, 6 Funkhouser : Review of the Philippine Membracidx 373 



Pyrgonota bifoliata is a most bizarre species, recalling in gen- 

 eral outline Hypsauchenia hardwickii Kirby, but with the 

 anterior horn straighter and without the posterior elevation. 

 Its frequent mention in literature makes its identification com- 

 paratively easy. 



Chocolate-brown with broad whitish yellow patch covering 

 middle of posterior process and extremity of this process darker. 

 Pronotum and exterior basal area of tegmen broadly punctured 

 and sparingly pubescent, the punctures separated by reticulated 

 ridges, which form a network of polygonal areas. Pronotal horn 

 very high, gradually narrowing to point of branching; two- 

 branched at extremity, the branches spreading and flattened at 

 tips. Posterior process tectiform. Entire posterior margin of 

 pronotal horn armed with fine spines, these spines extending 

 down over dorsal margin of posterior process and gradating 

 into serrate teeth at extremity. Tegmina brown and opaque, 

 exterior margin wavy; hindwings transparent, veins brown. 

 Tibiae foliaceous. 



Length, head to tip of tegmen, 6 to 7 mm. ; height of pronotal 

 horn to point of branching, 5 mm. ; length of branches of pronotal 

 horn, 5 mm. 



Philippine Islands (Westwood, Fairmaire, Walker, Stal, Buck- 

 ton) ; Luzon, Los Baiios (Baker) . 



Pyrgonota tumida Stal. 



Pyrgonota tumida Stal, Hem. Phil. (1870), 730; BUCKT., Mon. Memb. 

 (1903), 270. 



Black; head and thorax distinctly punctate. Dorsal process 

 high, above the middle gradually becoming slender, strongly 

 thickened at apex, both anterior and posterior margin bearing 

 a single ridge, the sides three-ridged; the posterior carina 

 slightly denticulate, the teeth continuing upon the posterior pro- 

 cess. The posterior process gradually slender as seen from a 

 side view, behind the middle subdepressed. Tegmina marked 

 with a small, pale spot before the apex of the clavus. Feet flavo- 

 testaceous. 



Length, 8 mm. ; width, 2.2 mm. 



Described by Stal from the male only. 



Philippine Islands (Stal). 



Pyrgonota philippina Stal. 



Pyrgonota philippina StAl, Hem. Phil. (1870), 730. 

 Pitchy black ; thorax strongly punctate. Dorsal process high, 

 straight, leaning more or less forward, slightly recurved toward 



