230 CARDANUS COSTATUS. 



of the front margin a short longitudinal keel is present 

 which is foliowed by an elongate-ovate strongly punctured 

 impression surrounded by a smooth nearly impunctate space, 

 except at the base of the thorax where it shows some 

 large punctures; the remaining portion of the pronotum 

 is rather evenly covered with large punctures except along 

 the front margin where the punctures are somewhat smaller 

 and closer together. 



The elytra are somewhat narrower than the thorax and 

 slightly tapering towards the end ; the basal margin is 

 concave and the shoulders are provided with a blunt tooth 

 which is directed forward and outward ; the outer margin 

 is crenulated at the shoulder-region and the sutural margins 

 are distinctly raised and provided with a row of small 

 ovate punctures. Each elytron shows three distinct shining 

 sparsely punctured costae which meet at some distance from 

 the apex; the first or innermost is the broadest, the second 

 is narrower and the third (beginning at the shoulders) still 

 narrower but more strongly punctured along the outside; 

 the interspaces between the costae and between the first 

 costa and the sutural margin are entirely occupied by two 

 regular rows of large punctures which are separated along 

 the middle by a raised smooth line; the punctures between 

 the 2"^^ and 3rd costae are slightly transverse; outside from 

 the 3^^ costa there are four rows of similar but smaller 

 punctures; the marginal row is impressed. 



The intermediate and posterior tibiae are provided with 

 three distinct spines on the outside. 



A single specimen from Padang Sidempoean (Tapanoeli 

 Residency: West Sumatra) in Mr. Rene Oberfchür's collection. 



This is the third species of the genus Cardanus known 

 from this district; the two other species are C. sulcatus 

 Westw. and C. sericeus Boil. 



Ley den Museum, April 1903. 



Notes from the Leyden üMuseum, "Vol. XXIII. 



