592 PHYTOPHAGA. 



4. Luperodes apicicornis. 



Ovate, convex, testaceous, the antennae (the apical joint excepted) and the tibia? black ; thorax finely punctured, 

 the sides with a black band ; elytra scarcely visibly punctured, with the base, a narrow transverse band 

 before the middle, and the apical margins, black. 



Var. The thorax and elytra testaceous, the apices of the latter obscurely piceous. 



Length 1| line. 



Head impunctate ; the frontal tubercles very indistinct ; antennae as long as the body, the third joint one half 

 longer than the second, the three or four basal joints more or less testaceous beneath, the apical joint 

 entirely of that colour, the rest black ; thorax transverse, the basal margin rounded, the surface very 

 minutely punctured, with a very obsolete transverse depression on each side, the sides with a narrow 

 longitudinal black band ; elytra convex, scarcely more distinctly punctured than the thorax, testaceous or 

 fulvous, with the base, a narrow transverse band before the middle (connected with the basal mark at the 

 sutural and lateral margins), and the apices at the sides, black ; the first joint of the posterior tarsi half 

 the length of the tibia. 



Hab. Panama, Bugaba, Volcan de Chiriqui [Champion). 



Separated from L. biannularis by the differently-coloured antennae, the black sides 

 of the thorax, and the similarly-coloured elytral apices. The third joint of the antennae 

 is also longer than in the allied species. The few specimens which I refer to the 

 variety differ in the absence of the black thoracic and elytral markings, the apices of 

 the elytra only being stained with piceous ; they agree with the type in the colour and 

 structure of the antennae. 



5. Luperodes dimidiaticornis. 



Testaceous, the intermediate and the apical two joints of the antennae black ; thorax finely punctured, the sides 

 with a black band ; elytra closely punctured, a transverse band at the base, another below the middle, 

 and a third near the apex, connected at the sides and at the suture, black. 



Var. The apical band of the elytra absent, the other bands almost obsolete. 



Length 1| line. 



Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 



This species seems to be very variable in the markings of the elytra : in one example 

 only are they plainly visible ; in all the others the elytral bands are either nearly obsolete 

 or incomplete. The band at the base generally leaves a small spot near the scutellum 

 and another at the shoulder of the ground-colour and extends in a point downwards 

 along the suture, this band being connected at the sides with a broader stripe extending 

 to the posterior bands ; the latter are, in most specimens, only faintly indicated. 

 L. dimidiaticornis is of the same shape and size as the two preceding species, from 

 which it is principally distinguished by the colour and structure of the antennae — the 

 sixth and seventh and the apical two joints being black and the second and third joints 

 small and equal ; these organs are also shorter than in the allied forms. 



6. Luperodes nigricornis, 



Pale fulvous, the antennae and the posterior tibiae black ; elytra black, closely punctured, a transverse band at 

 the middle, widened at the suture, fulvous. 



