58 LAMELLICOBNIA. 



P. velutinus is closely allied to P. chryseicollis and P. noctis. The whole upper 

 surface is black, with a silky lustre, except the lateral margin of the thorax (from the 

 eye to the basal side of the hind angle), which is of a brilliant fiery-coppery hue, with 

 golden-green reflections. The pygidium and the four hind femora are of the same 

 metallic hues. 



We figure a fully-developed male from the Volcan de Chiriqui. 



7. Phanseus endymion. 



Phanceus endymion, Harold, Ann. Soc. Ent. Fr. 1863, p. 163 \ 



Hab. Mexico, Vera Cruz, Cordova \ Istapan (Salle), Jalapa, Oaxaca, Maltrato 

 (Hbge) ; Guatemala, San Isidro, Pantaleon, Cubilguitz (Champion). 



Von Harold describes the male as " niger opacus," and the female as " cseruleo- 

 viridis nitida." All the male examples I have seen are either rich dark blue, or 

 dark brassy-green ; in both cases with blackish elytra. The striae of the elytra vary 

 in being either smooth or crenate-punctulate. The numerous females are shining dark 

 blue, with the thorax sometimes slightly greenish, with a black antero-discal spot. 



S major. Corrni capitis longissimum, curvatum. Thorax disco late triangularis deplanatus, subtiliter granu- 

 lans, angulis posticis lateraliter valde productis. 



cf effoeminatus. In loco cornu capitis carina parum elevata. Thorax disco anguste triangularis, angulis haud 

 productis. 



5 . Thorax antice carina tri-tuberculata arcuata et pone carinam coneavus. 



8. Phanseus pyrois. (Tab. III. figg. 22, s ; 22 a, side view of head and thorax ; 



23,$.) 



P. endymion proxime affinis et similis, sed differt coloribus et in $ thorace antice tri-tuberculato nee carinato, 

 pone tuberculo haud coneavus ; clypeo bidentato ; thorace disco late triangulari, deplanato, subtiliter granu- 

 late ; elytris sat profunde striatis, striis semper lsevibus ; corpore subtus pedibusque nigro-cyaneis ; pygidio 

 plus minusve cupreo. Colore supra variat, <$ § (elytra semper nigra fere opaca): — 1, thorace nigro sub- 

 opaco, lateribus anguste aurato-cupreis capiteque nigro : 2, capite (margine antico nigro excepto) rubro- 

 cupreo, thorace rubro-eupreo, lateribus viridi-aeneis ; 3, capite postice igneo-cupreo, thorace disco nigro 

 subopaco, linea dorsali, margine postico et lateribus anterioribus late lsete igneo-cupreis ; 4, capite (margine 

 clypeo nigro) et thorace splendide aurato-cupreis. 



Long. 14-20 miUim. <3 $ . 



Hab. Nicaragua, Chontales (Belt, Janson) ; Costa Eica (Van Patten); Panama, 

 Bugaba, Volcan de Chiriqui 2000 to 3000 feet (Champion). — South America, Colombia 

 (coll. Pates). 



The male shows fine gradations of development in the length of the horn and in the 

 width of the plane and sloping triangular dorsal plate of the thorax, and the lowest or 

 effeminate stage is precisely as described under P. endymion. In the female the 

 singular difference in the prominence on the anterior disc of the thorax is constant, 

 and no doubt specific, the three tubercles rising singly out of the convex slope of the 

 surface, without trace of carina or depression behind them. 



