274 HORN. 



There is but little resemblance at first sight, between this bright 

 species and the little Pr. lucidicollis Chd., although the characters given 

 above seem not to be so striking (vi^e must remember that the whole 

 genus belongs to those that are exceedinglj' poor in good distinctive 

 characters !). The beautiful, red-golden color of the front and pronotum 

 contrasts very well with the almost black-jDurple (shining) elytra. The 

 large size and parallel form are equally remarkable. The fine sculpture 

 of the front (rougher near the eyes), is longitudinal, that of the 

 vertex and pronotum transverse, the median line of the latter is very 

 slightly impressed, the sulcus on the base (between the free posterior 

 margin and the posterior transverse strangulation) deep and well marked 

 throughout. The punctures of the elytra are separated each from the 

 other, only on the posterior third (near the suture from the middle) 

 are they slightly confluent. Five slight, indistinct impressions are to 

 be seen on each elj'tron : running down a short distance from the 

 interior margin of the humeral spot; at the first quarter, nearer the 

 suture than the lateral margin ; anterior to the median and apical spots ; 

 and just before the apex. 



The penultimate joint of the labial palpus is slightly thickened. The 

 2 seems to have the prothorax slightly narrowed towards the posterior 

 strangulation. 



