MEGAPENTHES. 383 



Beneath thickly punctured ; posterior coxal plates very broadly and angularly widened opposite the point 

 of insertion of the femora. 

 Length 12J, breadth 2| millim. ( $ .) 



Hah. Guatemala, Cerro Zunil (Champion). 



One female specimen. This species is perhaps nearest allied to M. longitarsis, but 

 it has the elytra much more elongate, with the sides straighter and more gradually 

 narrowed from the base, the upper surface more shining, the interspaces on the thorax 

 not opaque, &c. 



12. Megapenthes badius. (Tab. XVII. fig. 5, $ .) 



Elongate, moderately convex, shining, thickly pubescent ; brown, the head infuscate behind, the prothorax with 

 the base broadly, the apex narrowly, and a narrow median line indeterminately flavo-testaceous ; the 

 under surface ferruginous ; the abdomen infuscate ; the antennae and legs testaceous. Head moderately 

 convex, thickly punctured ; antenna? ( § ) rather slender, extending to a little beyond the hind angles of 

 the prothorax, joint 3 slightly longer than 2, the two together about as long as 4. Prothorax longer than 

 broad, subparallel behind, the sides a little rounded and converging from about the middle forwards ; the 

 hind angles greatly produced, not divergent, unicarinate ; the surface thickly, finely punctate, with the 

 interspaces smooth and shining, canaliculate from the middle to the base. Elytra moderately elongate, 

 considerably narrower than the prothorax at the base, subparallel in front, widest a little before the middle, 

 and rapidly narrowing thence to the apex, the apices rounded; finely but rather deeply punctate-striate, 

 the interstices feebly convex, thickly punctured, and subgranulate. Beneath somewhat closely punctate : 

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



Length 85, breadth 2 millim. ( $ .) 



Hab. Guatemala, Panajachel 5000 feet (Champion). 



One female specimen. This species is not very closely allied to any of the other 

 Central-American forms described here. It has the thorax considerably wider at the 

 base than the elytra, with the hind angles not divergent and unicarinate, the elytra 

 narrowing from about the middle to the apex and also slightly narrowed anteriorly. 

 From M. melanotoides it may be known by the much shorter elytra, which are more 

 rounded at the sides. 



13. Megapenthes conicicollis. 



Yery elongate, moderately convex, shining, pubescent ; obscure reddish-brown, the hind angles of the prothorax 

 and the elytra reddish-brown, the antennae and legs testaceous. Head moderately convex, closely punc- 

 tured; antennae slender, extending to a little beyond the base of the elytra, joint 3 slightly longer than 2, 

 the two together not longer than 4. Prothorax a little longer than broad, subcorneal, rapidly narrowing 

 from the base forwards, distinctly sinuate on either side before the middle ; the hind angles stout, diver- 

 gent, unicarinate ; the surface thickly, finely punctate, the punctures finer and more scattered on the 

 disc, with the interspaces smooth and shining, canaliculate behind. Elytra elongate, subparallel to the 

 middle, and narrowing thence to the apex, the apices subtruncate, with the sutural angle rather sharp ; 

 punctate-striate, the interstices feebly convex and rather sparsely, finely punctate, subgranulate towards 

 the base. Beneath thickly punctured ; posterior coxal plates very broadly and angularly widened 

 opposite the point of insertion of the femora. 



Length 13, breadth 3 millim. ( $ ?) 



Hab. Mexico, Chiapas (Salle). 



