1014.1 F- H. Gravely : An Account of the Oriental Passalidae. 209 



widest a little more than half way from this point to the angles; median groove 

 strongly developed; scars obUquely S-shaped, punctured in lower two-thirds 

 of their length. Lateral ventral plates of prothorax sparsely and obscurely punc- 

 tured in front, closely and distinctly punctured and hairy behind. Scutellum more or 

 less sparsely punctured in antero-lateral angles ; oblique punctured band of mesotho- 

 racic episterna very broad, covering almost the whole of the plate, posterior angles 

 polished ; anterior parts of lateral angles of mesosternum punctured, the rest smooth, 

 middle-line marked by a broad and somewhat Y-shaped groove whose fork is 

 directed forwards. Metasternum unpunctured except in anterior angles, lateral 

 areas not very broad behind. Abdominal sterna smooth and polished, unpunctured. 

 Posterior coxae matt behind, not distinctly punctured. Tibiae of middle legs with one 

 spur situated externally slightly beyond the middle; those of hind legs without these 

 spurs. Elytra unpunctured except in the grooves. 



Taeniocerus pygma2;us, Kaup. 

 PI. xi, figs. 8-8(?. 

 Regd. No. "^ "Malacca" ? 



I have also examined two specimens from Kuching in the Sarawak Museum 

 collection. 



Description.— Length 15-16 mm. Labritm twice as broad as long behind, but 

 three times as broad as long in front, the rounded anterior angles being much more 

 prominent than in the preceding 'species. Upper tooth and uppermost terminal 

 tooth of mandibles obsolete; anterior lower tooth conical, that of left side united by 

 a ridge to middle lower tooth. Smooth central part of mentnm broader in front than 

 in preceding species, being distinctly pentagonal; mentum otherwise as in that 

 species. Head more or less finely roughened, except around central tubercle where 

 it is smooth, and further back where it is punctured; central tubercle almost 

 completely divided by a longitudinal groove into a pair of conical crests apically 

 rectangular in profile; these crests obscurely joined together behind into a single 

 horse-shoe shaped structure. Anterior margin of head slightly concave, sometimes 

 bordered by an obscure marginal furrow, meeting supra-orbital ridge in a much 

 rounded angle of a-bout 60° and side margin of the head at about 90° ; side margin 

 of head making a somewhat rounded re-entrant angle of about 120° with canthus; 

 external angle of canthus and apical angle of supra-orbital ridge also about 

 120°, the latter situated at about the middle of the ridge. A slight hollow present 

 on each side of central tubercle. Pronotnm polished, anterior niargin wavy or almost 

 straight, anterior angles acute and often very slightly prominent ; sides convex, diver- 

 gent; posterior angles rounded, posterior margin convex, marginal groove well deve- 

 loped across middle-hne in front, otherwise as in preceding species ; median groove 

 strongly developed; scars /- or y-shaped, punctured. Prothorax ventrally as in the 

 preceding species. Scutellum entirely smooth except for usual finely punctured 

 patch in middle of anterior margin, or faintly grooved in middle-line immediately 



