360 Mr. C. 0. Waterliouse on new 



the base, with a deep cavity at the lower part, on each side of 

 which is a small triangular tooth emanating from the margin 

 of the horn ; the apex of the horn is suddenly narrowed and 

 bent forward at a right angle. The thorax is more strongly 

 punctured (especially above) than in P. nutans, even in the 

 anterior cavity. The elytra have the striae fine but distinct, 

 not dilated at the apex, the surface on each side of the striae 

 dull, leaving the middle of the interstices more shining ; these 

 are rather strongly and moderately closely punctured. 



Pinotus andicola, Harold. 



Harold does not describe the female of this species. I think 

 it is undoubtedly the insect described by Blanchard under the 

 name of Copris triangularic.eps. 



Pinotus nitidissimus, sp. n. 



Ovatus, rufo-piceus, convexus, nitidissimus ; capite sat magno, 

 planato, triangulari, antice crebre transversim ruguloso, margine 

 anguste reflexo, vertice linea transversa parum elevata leviter 

 curvata posti e laavi instructo : thorace convexo, laevi, disco antice 

 leviter flexuoso, angulis anticis sat crebre punctulatis, lateribus 

 bene rotundatis ; elytris thorace angustioribus, quam latitudine 

 paullo brevioribus, omnino lsevibus. 



Long. 8| lin. 



Hah. Bolivia {Bridges). 



This species is so entirely unlike any other known to me 

 that it is difficult to locate satisfactorily ; but on account of 

 the rather large triangular head must come early in the arrange- 

 ment according to von Harold. I should place it near 

 P. andicola. The specimen described is probably a female. 

 The thorax has the extreme front part declivous, with a 

 shallow impression on each side of the front of the disk. The 

 elytra are not striate; but with a strong magnifying-glass 

 some very fine punctures may be seen arranged in lines. 



Pinotus adrastus, Harold. 



Von Harold describes this species (Deutsch. ent. Zeitschr. 

 xix. p. 212) from Peru (Thamm). In the British Museum 

 there is a specimen from Peru, also collected by Thamm, 

 which agrees well with von Harold's description, except that 

 the discoidal tubercles would appear to be more developed 

 (curved inwards at the apex) and with a deep transverse 

 impression between these tubercles and the acute basal tubercle. 



