ALLCEODROMUS INSIGNIS. 181 



elytris dilutioribus , prothoracis margine antico et postico, 

 feraorum tibiarumque basi et apice obscurioribus; capite 

 obsoletissime rareque puiictulato, rostro brevissimo , basi 

 lato , in medio foveolato ; prothoracis lateribus antice for- 

 titer excavatis , postice rotundato-ampliatis , dorso canali- 

 culate ; elytris apice attenuatis, supra convexis, anguste 

 striatis, striis impunctatis, interstitiis latis, deplanatis , 

 basin versus arcuatis. 



Long. 4^/2 mill. 



Hah. Sumatra occid. (Tambang Salida). — A single spe- 

 cimen collected by Mr. J. L, Weyers. 



The head is a little longer than broad , narrower at 

 the base , very finely and scarcely punctured above , the 

 occiput is raised, the eyes are moderate, rounded, a little 

 prominent. Rostrum shorter than the head, foveolate at 

 the base, narrower between the antennae, scarcely widened 

 at the apex. The antennae are shorter than the prothorax , 

 clavate, compressed; the basal joint is short, stout, the 

 2nd is long , a little shorter than the Si'd and 4^^ joints 

 taken together, the 3'''^ — 5*^ nearly moniliform , the 6^1' — %^^ 

 transverse, with the sides unequal in length; the 9th and 

 10*li almost as long as broad, with the sides as in the 

 preceding joints and the base narrower than the apex; the 

 apical one is elongate , and pointed at the tip. 



Prothorax shorter than the elytra and equalling them 

 in width ; the anterior portion is hardly curved at the sides , 

 deeply excavated above so that the dorsal portion is reduced 

 to a subacuminate keel which , at one third from the front 

 margin, is obliquely sloping; the posterior part is enlarged 

 and curved at the sides, impressed laterally at the base 

 and provided with a short raised margin ; the upper sur- 

 face of the prothorax is furrowed in the middle. 



The base of the elytra is slightly emarginate , the shoul- 

 ders are rounded , the sides almost parallel , gradually 

 narrower at the apical declivity and obtuse at the apex ; 

 convex above, a little depressed near the base, striate, 

 the striae are impunctate, the interstices broad, smooth, 



Notes from the Leyden Museum., "Vol. XVI. 



13 



