378 SEEEICOENIA. 



the elytra brown or pitchy -brown, with the epipleurae obscure ferruginous ; beneath piceous or obscure 

 reddish-brown ; the antennae ferruginous, the legs testaceous. Head convex, thickly punctured ; antennae 

 ( $ ) short, scarcely reaching the hind angles of the prothorax, rather slender, joints 3 and 4 equal, 3 

 more than twice as long as 2. Prothorax a little longer than broad, very gradually narrowing from 

 the base forwards, the sides feebly rounded in front ; the hind angles long and acute, divergent, 

 bicarinate ; the surface thickly and finely punctate, with the interspaces smooth and shining, more or 

 less distinctly canaliculate behind. Elytra moderately long, subparallel to the middle, and narrowing 

 thence to the apex, the apices separately rounded ; rather deeply punctate-striate, the interstices feebly 

 convex and thickly punctured, subgranulate towards the base. Beneath thickly punctate; posterior 

 coxal plates moderately and angularly widened opposite the point of insertion of the femora. 

 Length 7-8|, breadth lf-2 millim. ( $ .) 



Hob. Mexico, Cordova (Salle) ; Nicaragua, Chontales (E.M.Jansori). 



Three examples, apparently all females. This species resembles M. cincticollis in 

 general shape, but differs from it in having the third joint of the antennae as large as 

 the fourth ; the hind angles of the thorax ferruginous, divergent, and with the outer 

 carina longer and well defined ; the elytral interstices more sparsely punctate. More 

 parallel than M. bicarinatus, the third joint of the antennae longer, the thorax more 

 finely punctured. M.furvus also approaches the European M. tibialis, Lac. 



2. Megapenthes brasilianus. (Tab. XVII. figg. 2 )C J ; 2a, antenna.) 

 Megapenthes brasilianus, Cand. Elat. Nouv. iii. p. 66 (1881) \ 



Elongate, rather convex, shining, pubescent ; testaceous or ferrugineo-testaceous, the head (the labrum 

 excepted), the tips of the hind angles of the prothorax, the scutellum, the suture of the elytra partly or 

 entirely, and the body beneath (the propleurae excepted), black or piceous ; the antennae and legs 

 testaceous. Head moderately convex, thickly, somewhat coarsely punctate ; antennae short, about 

 reaching the hind angles of the prothorax in the male, a little shorter in the female, joint 3 as stout as, 

 and slightly longer than, 4. Prothorax convex, longer than broad, narrowing from the base forwards, 

 subconical in the male, a little rounded at the sides in the female ; the hind angles strongly produced, 

 divergent, bicarinate ; the surface thickly, moderately finely punctate, with the interspaces smooth and 

 shining, shallowly canaliculate behind. Elytra moderately elongate, rapidly narrowing from the base, 

 separately rounded at the apex ; deeply punctate-striate, the interstices slightly convex and somewhat 

 thickly punctured. Beneath thickly punctured ; posterior coxal plates angularly and moderately widened 

 opposite the point of insertion of the femora. 



Length 7|-11, breadth 2-2| millim. ( tf $ .) 



Hob. Nicaeagua, Chontales (Janson) ; Panama, Bugaba (Champion). — Beazil, Eio 

 Janeiro and Bahia 1 . 



Five specimens, the males agreeing perfectly with the type, kindly communicated by 

 Dr. Candeze. In all of them the suture of the elytra is narrowly infuscate, a character 

 not mentioned in his description. The basal margin of the elytra is sometimes 

 black, as well as the scutellum and the tips of the hind angles of the thorax. 



3. Megapenthes rubigineus. 



Elongate, rather convex, shining, pubescent ; ferruginous or brownish-ferruginous, the antennae black, the 

 two basal joints sometimes obscure ferruginous, the legs piceous or black, with the knees and tarsi 

 ferruginous ; beneath rufous or obscure rufous, the abdomen sometimes infuscate at the sides and apex. 



