X, D. 6 



Baker: Studies in Philippine Jassoidea, IV 



339 



clypeus at base; front slightly broader than long; clypeus of 

 medium width, about as wide basally as apically, apex truncate ; 

 lorse much longer than clypeus and two thirds as broad. Width 

 of pronotum two and a half times the length, the length slightly 

 less than three times that of the vertex. Scutellum as long as 

 pronotum and about one half of the vertex together; transverse 

 impressed line obtuse-angularly bent, the apex open, the lateral 

 limbs not arcuate ; surface just posterior to impressed line with a 

 few, shallow, transverse wrinkles. Tegmina distinctly thickened 

 and roughened on basal half, this area having numerous strong 

 punctures along the veins. Hind margin of anal segment slightly 

 produced medially. 



Palawan, Puerto Princesa (coll. Baker). 



Idioscopus clypealis Leth. 



Colors as described by Distant. He does not state that it is 

 the male which lacks the two spots on anterior margin of head, 



Fig. 19. Idioscopus palawanensis sp. nov. 



Fig. 20. Idioscopus clypealis Leth. 



this being a sexual character. The clypeus in my specimens is 

 uniformly black. The female also possesses two small black 

 spots between the ocelli, as shown in Distant's figure, where the 

 ocelli, laterad of the spots, are not shown. 



Vertex, and face to just below upper black spots, finely, trans- 

 versely striate, remainder shagreened; head wider than prono- 

 tum ; length of vertex into width between eyes two and one-fourth 

 times, length at middle distinctly greater than at eyes. Face 

 somewhat broader than long; distance between ocelli two and 

 two-thirds times the distance between ocelli and eyes and about 

 twice the width of clypeus at base; front longer than broad; 

 clypeus of medium width, slightly broader apically than basally, 

 tip gently emarginate; lorse far longer than clypeus and nearly 

 as broad. Width of pronotum little more than twice the length, 

 the length little more than twice that of vertex. Scutellum as 

 long as pronotum and three fifths of the vertex together ; trans- 



