388 2^/16 Philippine Journal of Science wie 



short, acute, somewhat flattened dorsoventrally, upper surface 

 of horn bearing distinct central carina ; scutellum distinct, longer 

 than broad; posterior process slender, triquetrous, slightly de- 

 pressed in middle, lateral margin extended before middle, tip 

 acute, reaching well beyond internal angle of tegmina. Teg- 

 mina smoky hyaline, without markings, base black and punctate, 

 entire surface much wrinkled, veins distinct and somewhat punc- 

 tate along margins with occasional scattered hairs. Undersur- 

 face of body black, sides of abdomen and of meso- and metatho- 

 rax densely pubescent. Femora brown-black and swollen; hind 

 trochanters armed with strong teeth on inner surface ; tibise flat- 

 tened, flavous above, very light yellow below, margins bristled; 

 small yellow nodule in joint between femur and tibia; tarsi fer- 

 ruginous; claws brown. Type, female. 



The type specimen bears Baker's duplicate No. 3116. 



Length to extremity of tegmen, 7 mm. ; width between extrem- 

 ities of suprahumeral horns, 4.8 mm. 



Mindanao, Dapitan (Baker). 



Tricentrus attenuatus sp. nov. Plate II, fig. 13, a and b. 



Near T. gibhosulus Walk., but different in color, in shape and 

 position of suprahumeral horns, and in structure of posterior 

 process. 



Testaceous, becoming light brown posteriorly, broad white 

 tomentose patch on sides of meso- and metathorax ; suprahumeral 

 horns broad and flattened, not extending outward as far as 

 humeral angles below them; posterior process short, sharp, 

 tectif orm, barely reaching the internal angles of tegmina ; under- 

 surface of body black; bases of femora very dark brown; ex- 

 tremities of femora, entire tibise, tarsi, and claws ferruginous- 

 ochraceous. Size small. 



Head broader than long, almost black, very densely and evenly 

 pilose with silvery hairs ; eyes large, very prominent, ochraceous, 

 mottled with brown; ocelli pearly, somewhat farther from each 

 other than from the eyes and situated slightly above a line 

 passing through center of eyes; lower margin of face wavy; 

 clypeus extending well below lower margin of face. Pronotuni 

 moderately convex, dark brown before shading to lighter behind, 

 uniformly pilose, finely punctate; humeral angles prominent; 

 suprahumeral horns short, sharp, fiattened dorsoventrally, not 

 extending outward as far as extremities of humeral angles, 

 projecting outward, upward, and strongly curving backward, 

 anterior margin broadly rounded, posterior margin almost 

 straight, not carinate above ; posterior process tectif orm, sharply 



