400 Dr. G. A. K. Marsliall on 



a broad and deep furrow throughout^ which is quite open at 

 the posterior margin. 



Lengtli 2i, breadth 2 mm. 



33UKMA : Tavoy, Tenasserim {W. Doherfj/). 



The most striking features of this species are the structure 

 of the front margin of tlie pronotum, the very long pro- 

 thoracic spine, tlie elevated sutural scales on the elytra, and 

 the open continuous furrow on the metasternum. 



Mecysmoderes subhumeralis, sp. n. 



(J. Colour varying from piceous black to red-brown, the 

 upper surface s])arse]y clothed with yellowish hair-like 

 scales; the sutural patch of scales on the elytra extending 

 for about one-lhird of their length, the basal two-thirds of 

 the patch being black and the apical third whitish ; on the 

 seventh interval of the elytra there is a small spot of white 

 scales before the middle; the lower surface sparsel}^ clothed 

 with pale scales, except for a dense patch on the upper half 

 of the mesosternal epimeron. 



Head reticulate, the central carina continued well on to 

 the forehead, which is almost as broad as the base of the 

 rostrum and strongly impressed. JRostrum short and very 

 stout, hardly longer than the front femur and oidy just 

 reaching the metasternum, parallel-sided in the basal two- 

 thirds, slightly wider at the apex, its dorsal outline strongly 

 convex, and its depth greater than its width in the middle; 

 the upper surface with indistinct confluent punctation, a 

 strong central carina for three-fourths its length, and a less 

 distinct lateral one. A7itenn(B testaceous ; the scape without 

 an apical process ; the iunicle with joints 1 and 2 subequal, 

 3 distinctly shorter, 4 longer than broad, 5 and 6 subglobular. 

 Prothorax with the sides equal to half the basal margin, 

 straight from the base to beyond the middle and then rather 

 abruptly constricted j the basal margin more nearly trans- 

 verse than in most species, the spine siiort, about one-fourth 

 the length of the suture ; the front edge truncate dorsally and 

 narro\\ly marginate ; the whole discal area forming a rounded 

 elevation laterally compressed in the anterior half, irregularly 

 and unequally reticulate, with a strong and complete central 

 carina, on each side of it in the front half a short carina that 

 does not reach the maigin, and beyond this another irregular 

 sinuate one that does reach the margin. Elytra about as 

 long as their greatest width, the striae broad and deep, with 

 separated })unctures and each with a single row of distant 

 minute white set8s ; the intervals costateaud scarcely broader 



