1914-] F. H. Gravely : An Account of the Oriental Passalidae. 213 



three or four times as long; terminal portion of mandible curved inwards; middle 

 tooth somewhat the largest, and lowest somewhat the smallest, of the three terminal 

 teeth; anterior lower tooth of right mandible slenderer than that of left, both L-shaped 

 in section with the short limb in front and the long one below. Mentum thick in 

 front, with vertical or bilaterally excavate anterior face slightly prominent in middle 

 line ; anterior margin as seen from below bordered by a distinct groove. Head above 

 smooth and pohshed; central tubercle very large, directed forwards, confluent with 

 anterior margin, about equal to upper teeth of mandibles in length, flattened on either 

 side and above, upper margin S-shaped in profile, being convex (and usually very obtusely 

 angular) behind and concave in front, long narrow postero-dorsal surface granular, 

 antero-ventral surface fiat and very strongly granular except immediately below the tip 

 which is smooth. Supra-orbital ridges tooth-like, apical angle 6o°-9o°, ridges not 

 extending forwards as far as anterior angles of head which contain about 120° each. 

 External angle of canthus prominent, rounded, somewhat less than 90°. Pronotum 

 polished; anterior margin slightly sinuate in the middle; lateral angles prominent; 

 sides straight, slightly divergent; posterior angles strongly rounded; posterior margin 

 somewhat convex ; marginal groove punctured throughout, more or less incomplete 

 in middle-line, anterior transverse portion broader than the rest ; median groove 

 present, very pronounced; lateral scars usually '-shaped, but somewhat variable, 

 usually punctured, a few additional punctures present a little above and in front of 

 them. Lateral plates of lower surface of prothorax punctured and more or less hairy 

 in front of the coxal cavities, smooth and hairless behind. Scutellum more or less 

 finely and sparsely punctured in front, otherwise smooth and polished. Mesothoracic 

 episterna punctured throughout. Mesosternum with strong median concavity behind, 

 whose sides may be raised into ridges further forwards ; punctured in front on either 

 side of middle-line and beside lateral sutures, the rest of the surface being polished 

 and smooth, or slightly rough in parts. Metasternum with central area not defined 

 except near posterior margin, and there but vaguely; anterior intermediate areas 

 closely punctured; lateral areas rough, narrow throughout; central area and 

 posterior intermediate areas smooth and polished. Posterior parts of hind coxae and 

 scars of abdominal sterna (including almost the whole of the second sternum) roughened 

 or indistinctly punctured. Tibiae of middle legs with 1-3 spines on the outer side 

 before the apex, those of the hind legs with at most one .such spine. All furrows 

 of elytra distinctly punctured, ribs unpunctured. 



Subfamily PLEURARIIN AE. 



Genus PLEURARIUS, Kaup. 



Pleurarius brachyphyllus, Stoliczka. 



PI. xi, figs. I3-I3«- 



fii3i7 ftis.i "i C Beddome. 



\^^'* (panilypes) ' ^ S. India Stoliczka. 



~^ ) V ? Madias Museum. 



' Here again it is evident that the original numbers have been lost at some time and replaced b / 



