434 PHYTOPHAGA. 



65. (Edionychis montana. 



Flavous ; antennae (the first joint excepted), the four anterior tibiae, and tarsi, black ; thorax impnnctate ; elytra 

 finely punctured. 



Var. Above fulvous. 



Length 2 lines. 



Head impunctate, the eyes wider apart than their diameter ; antennae more than half the length of the body, 

 black, the first two joints. testaceous, the fourth joint distinctly longer than the third ; thorax nearly three 

 times as broad as long, the sides nearly straight at the base, rounded in front, the lateral margins narrowly 

 flattened, the anterior angles scarcely produced, the surface with a rather deep transverse groove on each 

 side near the base, impunctate ; elytra widened behind, the shoulder not bounded within by a groove, the 

 surface finely punctured, somewhat raised below the base ; legs and underside flavous, the outer side of 

 the four anterior tibiae and the tarsi piceous ; the first joint of the posterior tarsi very short; claw-joint 

 strongly swollen. 



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



The small size, and the colour of the antennae and of the anterior tibiae, which is the 

 same in the sixteen specimens before me, separates (E. montana from (E. paupera, Illig., 

 (E. cribriceps, Schauf., (E. insignita, Boh., and several other unicolorous species. 



66. (Edionychis tibialis. 



Ovate, testaceous ; antennae, the knees, and the tibiae, piceous ; head and thorax impunctate ; elytra finely 



punctured. 

 Length 2 lines. 

 Head impunctate, the frontal tubercles transverse ; antennae piceous, the first joint testaceous, the third and 



fourth joints equal in length ; thorax very transverse, the sides rounded and broadly flattened, the anterior 



angles produced into a tooth, the surface impunctate, somewhat convex, the posterior margin straight ; 



elytra very finely punctured ; underside and legs testaceous ; tibiae and tarsi piceous, the posterior tibiae 



testaceous at the base. 



Hab. Costa Rica, Cache (Rogers). 



The small size and colour of the tibiae and antennae separates this species from its 

 unicolorous allies. 



67. (Edionychis discolor. 



Obscure fuscous or testaceous ; head closely punctured ; thorax minutely punctate ; elytra finely rugose, the 

 interstices closely punctured, each with two obscure spots at the base and one at the middle. 



Var. Elytra unspotted. 



Length 3 lines. 



Head rather closely and somewhat rugosely punctured ; the frontal elevations distinct and rather broad, the 

 eyes not very closely approached ; antennae slender, the joints elongate, the third and fourth joints equal, 

 the three lower ones sometimes dark fulvous, the others nearly black ; thorax slightly narrowed in front, 

 the sides rather broadly flattened, the anterior angles not produced, the surface dull and covered with some 

 very fine punctures (visible only under a strong lens) ; elytra closely and finely rugose and punctured, 

 with a spot at the shoulder, another one near the scutellum, and a third at the middle, obscure piceous. 



Hab. Panama, Volcan de Chiriqui (Champion). 



Whether the colour of this species is always so obscure and dull as the three speci- 

 mens before me show, I am unable to say, but the closely punctured head and rugosely 

 punctured elytra are peculiar to this species, and will help in recognizing it. 



