Colcoptera. 105 



colour, appears to be an immature specimen of the same species, 

 Avhicli hitherto has not been recorded from any locality outside of 

 Europe. 



Family BOSTEICHID^. 



46. Dinoderus minutus, Fabr. 



Of this species, which occurs throughout the Malay Archipelago 

 iind in many other parts of the world, three specimens Avere found. 



Family CIOID^. 

 47. Minthea rugicoUis, Walker. 



Ditoma rugicolUt, "W.ilker : Ann. & Mag. Nat. Hist., ii (18.58), p. 206 (Ceylon). 

 Minthta timilata, Pascoe : Journ. Ent., ii (1863), p. 141 (Saylee). 



A single example of this species, taken on the north coast in 

 October. 



Family TENEBRIONID^. 

 48. Opatrum dubium, Arrow, sp.n. 



Breve, latum, rufo-fuscum, undique breviter erecte setosum ; 

 ■capite granulato-punctato, clypeo triangulariter emarginato, a fronte 

 sulca obsoleta separate ; prothorace elytrorum latitudinis, lateribus 

 I'egulariter arcuatis, minutissime ciliatis, antice j^aullo contracto, 

 disco utrinque oblique sulcato ; elytris brevibus, convexis, punctato- 

 striatis, interstitiis convexis, granulatis ; antennis brevibus, 

 articulis 9° et 10° transversis, 8° et 11° globosis; tarsis rufo-piceis. 



Long. 9-11 mm. 



This species, which was found in considerable numbers, exhibits 

 a wide range of variation. Small specimens are narrow, with the 

 thorax hardly margined, and the foveae on each side of its disk 

 obsolete. The colour varies from a deep reddish- chocolate in fresh 

 specimens to a dull black, the whole upper surface, with the legs, 

 being clothed with short, nearly erect bristles. The clypeus is very 

 deeply emarginate, and meets the anteocular lobes in a deep notch 

 on the sides of the head. The prothorax is strongly curved, and 

 more or less flattened at the lateral margins, and has a slightly 

 oblique longitudinal groove on each side of the middle. There are 

 eight striae on each elytron, and the interstices are studded with 

 somewhat regularly arranged tubercles, each of which gives rise to 

 a stout hair. 



