ONCOTYLID^E. 389 



front of the eyes, and in a line with the middle of their upper half; 

 side lobes oval, stout ; antenniferous processes short, in a line with 

 the lower margin of the eyes ; Face ; central lobe long, broad, con- 

 vex, produced in front of the clypeus ; side lobes long, narrow. 

 Antennce shorter than the body ; 1st joint stout, shorter than the 

 head, somewhat cylindrical ; 2nd stout, 3 times as long as the 1st, 

 gradually thickened to the apex ; 3rd and 4th almost filiform, 3rd 

 about fths the length of the 2nd, 4th about 1 of the 3rd. Eyes small, 

 prominent; viewed from above hemispherical, from the side short 

 oval. Rostrum long, reaching to the 2nd abdominal segment ; 1st 

 joint reaching to the end of the xyphus of the prosternum. 



Thorax. Pronotum short, trapeziform, with 2 callosities in front, 

 twice as broad across the posterior margin as long ; anterior margin 

 concave, angles rounded; sides straight, somewhat margined, the 

 margin widest next the acute hinder angles ; posterior margin con- 

 vex, indented in the middle ; disk flattish convex, deflected to the 

 head. Scutellum triangular, equilateral, almost level with the 

 clavus, with a transverse channel near the base. Elytra longer than 

 the abdomen ; Clavus convex, deflected to the corium ; Corium flat- 

 tish convex, almost flat between the claval suture and the 1st nerve. 

 Sternum : Prosternum ; xyphus longish triangular, sides somewhat 

 convex ; Mesosternum convex, somewhat shortened posteriorly, and 

 faintly notched in the middle ; Metasternum ; centre flattish con- 

 vex, angle acute, prominent. Legs : tarsi; 2nd joint of the 3rd 

 pair longest ; 1st and 3rd of almost equal length. 



Species 1. AMBLYTYLUS AFFINIS. 



Pale brownish or greenish-yellow, clothed with short, somewhat 

 erect, black hairs. 



Head ochreous, with a broad, paler central line extending to the 

 apex of the face ; Clypeus ; side lobes slightly overlying the central 

 lobe of the face, thereby causing the latter to assume a somewhat 

 spatulate form. Antennce clothed with very short black hairs; 1st 

 joint greenish-yellow ; 2nd, 3rd, and 4th, brownish-yellow. Eyes 

 pitchy -brown. Rostrum greenish-yellow, tip brown. 



Thorax. Pronotum to behind the callosities yellowish-green, and 

 with a V-shaped channel between them; disk brownish-green; 

 sides and a central line, most distinct between the callosities, 

 pale greenish-yellow. Scutellum green, with a paler central line. 

 Elytra : Clavus pale brownish-yellow ; Corium ; anterior margin 



