PHAM1US. 57 



c? major. Cornu capitis elongato-curvatum, postice versus apicem serrulatum, apice acuto ; thorace disco medio 



late eoncavo, concavitatis margine antico bidentato, margine postico cormibus brevibus duobus approxi- 



matis, compresso-conicis, interspatio eoncavo. 

 cS minor. Cornu capitis brevissimum. Thorax disco anteriore eoncavo, cornubus posticis brevissimis ; paullo 



grossius punctatus. 

 S effoeminatus. In loco cornu capitis tuberculo transverso medio obtuse acuminato ; tborax prope marginem 



anticum quinque-tuberculatus. 

 $ incognita. 

 Long. 17-22 millim. 



Hab. Panama, Bugaba, Yolcan de Chiriqui {Champion). — South Ameeica, Colombia 

 (Wallis, coll. Bates). 



Mr. Champion obtained three examples, all males of low stage of development ; two 

 of them have a slight trace of metallic edging near the anterior and posterior angles of 

 the thorax arid at the base of the pygidium. The single well-developed male from 

 Colombia (Cauca valley X) is more distinctly margined with green or fiery-copper in 

 the same situations ; it has also an almost impunctate thorax, the lower developments 

 showing a coarser punctuation on the sides. 



Compared with males of P. chryseicollis and P. auricollis, the male, major, shows an 

 important difference in the posterior horns of the thorax, these being very much closer 

 together than in either of those species. 



We figure a male, minor, from Bugaba. 



6. PhanaBUS VelutillUS. (Tab. III. figg. 21, <$ ; 21 a, side view of head and 

 thorax.) 



Phanceus velutinus, Murray, Proc. R. Physical Society of Edinburgh, i. p. 213 (1856) l ; Edinb. 

 New Philos. Journ. ser. 2, v. p. 225 2 . 



Hab. Costa Rica, Volcan de Irazu 6000 to 7000 feet (Bogers) ; Panama, Volcan de 

 Chiriqui 4000 feet (Champion, Trotsch). — South Ameeica, neighbourhood of Quito, 

 Ecuador x 2 . 



Murray described this beautiful and interesting species from a single example, a 

 male of small size and low development, in which the frontal horn was of moderate 

 height, and the armature of the disc of the thorax reduced to two laterally compressed 

 tubercles. The highly developed male has a very different appearance, the thoracic 

 elevation being, as usual in such cases, removed to the hind part of the disc, and the 

 tubercles in the middle of the front edge of the elevation developed into excessively 

 long, cylindrical but pointed, spines reaching the tip of the clypeus. In a lower grade 

 of males the thoracic spines reach only the front edge of the thorax, the grade described 

 by Murray being still lower than this. 



In the female the head has a tri-tuberculate carina, and the thorax near the middle 

 of the anterior margin a very flexuous and fine carina, the middle of which advances 

 forward in an acute angle ending in a tubercle. This carina forms the front edge of 

 an eminence, bordered on each side by a deepish cavity and concave above. 



biol. CENTR.-AMBE., Coleopt., Vol. II. Pt. 2, May 1887. II 



