igi4.] F. H. Gravely : An AccouM of the Oriental Pinsalidac. 239 



and South Palawan. The Hamburg collection contains also specimens from Indra- 

 pura, Langkat, and Banguey. The British Museum collection contains specimens 

 from Perak. 



Description.— Length 2^-2^ mm. Anterior margin of labriim concave, left angle 

 distinctly more prominent than right, sides parallel. Lamella of fifth joint of antennae 

 usually rather long and often pilose. Mandibles with upper tooth well developed, 

 denned on upper margin behind by a concavity which is much more marked on the 

 left side than on the right; upper two terminal teeth large, the lowest one small on 

 the left side, minute on the right; left anterior lower tooth rather large, triangular 

 above and below, grooved horizontally between these two parallel surfaces ; its counter- 

 part on the right side minute. Mentum punctured and hairy laterally ; middle portion 

 smooth, with narrow depressed anterior border. Head above punctured and hairy in 

 neighbourhood of long keeled parietal ridges, which extend vertically outwards from 

 central tubercle, as is more or less invariably the case in all species of the genus I have 

 seen, such variations as occur being always towards a backward direction; frontal 

 grooves distinct, uniformly curved towards inner tubercles, or straight, or even 

 curved outwards to terminate a little way behind them ; frontal area consequently 

 variable in form; ridge joining inner tubercles almost straight, or faintly convex 

 in middle; left outer tubercle long and slender, more or less inwardly directed, often 

 much stouter at base than distally, variable in detail ; right outer tubercle moder- 

 ately long, apex acute in fresh specimens as seen from above, truncate or imperfectly 

 bifid in profile; anterior angles of head not prominent, containing at least 120°; 

 apical angle of supra-orbital ridge .almost equally blunt as a whole, but strongly 

 peaked. Pronotiim almost always with more or less distinct median groove, 

 marginal grooves incomplete in middle before and behind; scars crescentic, they 

 and the whole lateral border in front of them strongly and often closely punc- 

 tured. Lateral plates of under side of prothorax sometimes slightly punctured and 

 hairy in extreme anterior angles; then smooth for a space, behind which the 

 surface is strongly punctured and hairy ; hairless behind the co.N;ae. ScHtclliim highly 

 polished ; mesothoracic episterna punctured above and along anterior margin, somewhat 

 dull in posterior angle; mesosternum finely roughened throughout or in part, scars 

 extremely variable, never broad, sometimes long, sometimes rudimentary. Lateral 

 areas of metasternum very sharply defined and narrow in front, very broad and 

 indistinctly separated from intermediate areas -behind, not in contact with central 

 area; anterior intermediate and lateral areas closely and rather finely punctured 

 throughout, punctures becoming coarser and somewhat striate behind; posterior 

 intermediate areas punctured along posterior border, but as a rul.e not further for- 

 wards; central area smooth and poUshed, as is also ridge separating lateral from ante- 

 rior intermediate areas. Posterior parts of hind coxae smooth or nearly so. Abdomi- 

 nal s^ernrt indistinctly punctured in scars, the second with a few indistinct, but 

 larger, hair-bearing punctures as well in fresh specimens. Elytra hairy, closely punc- 

 tured at sides over whole surface from seventh rib onwards. 



