ONTHOPHAQUS RUGICOLLIS. 193 



NOTE XXV. 



DESCRIPTIONS OF THREE NEW SPECIES OF 



COPROPIIAGOUS LAMELLICORN COLEOPTERA 



FROM SUMATRA. 



Baron E. VON HAROLD. 



1. Onthophogus rugicollis , sp. u. 



Niger , flavo-setulosus , capite antice rotundato , medio 

 cannula transversa , postice carina tridentata , tborace rugose 

 punctate , medio baseos breviter sulcato , elytris interstitiis 

 leviter couvexis , asperato-punctatis , pedibus rufopiceis , 

 tarsis obscure rufis. (ƒ. — Long. 6 mm. 



Body of a somewhat elongated oval shape , depressed on 

 the superior surface of the elytra , black , the thorax with 

 a faint metallic hue ; the surface sparingly covered with 

 short yellowish hairs. The head rounded anteriorly , finely 

 and rather densely punctuated , intermixed with a rather 

 considerable number of large punctures; the middle of the 

 head with a small transverse keel which is slightly arched; 

 the posterior margin of the head tridentate, the median 

 tooth a little shorter but broader at its base than the 

 lateral ones. Thorax coarsely punctaated, the punctuation 

 squamiform on the anterior portion, rugose on the posterior 

 portion ; the sides regularly rounded , deeply sinuated be- 

 hind , tlie base very finely margined , Avith a rather deep 

 but short longitudinal groove in the middle and distinctly 



Notes from the l^eyden IMwseuixi, "V^ol. II. 



