638 SEERICOENIA. 



trisinuate, almost smooth; the surface finely and somewhat thickly granulate-punctate. Scutellum 

 rugulosely punctured, notched in the centre in front. Elytra rather short, a little wider than the 

 prothorax, sharply margined at the sides ; thickly, finely punctate, with indications of obsolete striae or 

 rows of coarser punctures on the disc, and with a row of coarse punctures within the margin. Fifth 

 ventral segment rather deeply subtriangularly emarginate in the male. 

 Length 3-4, breadth l±-2 millim. ( 6 $ •) 



Hab. Panama, Volcan de Chiriqui 2500-4000 feet (Champion). 



Five specimens, all in a bad state of preservation. A very obscure species, perhaps 

 nearest allied to P. marginata, from which it differs in its smaller size, the finely 

 granulate-punctate thorax, and the more parallel and more narrowly margined elytra. 

 P. chiriquensis is also very like P. marcida, but has less distinctly striate elytra, a 

 more deeply notched scutellum, and differently formed claws in the male. 



18. Ptilodactyla convexa. 



Elliptic, rather short, convex, thickly clothed with short brownish pubescence ; pitchy-black, piceous, reddish- 

 brown, or ferruginous, the antennae and legs brownish or testaceous. Head rugulosely punctured, the 

 eyes large ; antenna? long and slender, the joints 4-10 each with a moderately long ramus in the male 

 and serrate in the female. Prothorax short, broad, transversely convex in front, sharply margined at the 

 sides, the sides rapidly converging from the basal third forwards and subparallel behind, the hind angles 

 acute ; the base trisinuate, denticulate, and with a projecting tooth in the centre ; the surface somewhat 

 thickly granulate-punctate. Scutellum thickly punctured, very deeply notched in front and with a broad 

 deep median groove extending thence to near the apex. Elytra rather short, wider than the prothorax, 

 broadly and acutely margined at the sides, the humeri rounded ; seriate-punctate to near the apex, the 

 interstices flat and rugulosely punctate. Fifth ventral segment arcuate-emarginate at the apex in the 

 male. Tarsal claws with an acute tooth in both sexes. 



Length 5-5§, breadth 2|-2f millim. ( <$ $ .) 



Hab. Mexico (Salle), Jalapa (Edge), Teapa in Tabasco (H. H. Smith) ; Nicaeagua, 

 Chontales (Belt). 



Sent in numbers by Herr Hoge. A moderately large, convex species, with very 

 deeply notched and grooved scutellum, the claws similar in both sexes. It resembles 

 P. sulcata, but is smaller and less elongate, and has the thorax less narrowed in front 

 and more parallel behind. The following is a more nearly allied form. 



19. Ptilodactyla confinis. 



Elliptic, rather convex, somewhat flattened above, thickly clothed with short brownish pubescence ; piceous or 

 reddish-brown, the antennae and legs brownish or testaceous. Head rugulosely punctured, the eyes 

 large ; antennae long and slender, the joints 4-10 each with a slender ramus in the male and serrate in 

 the female. Prothorax short, transversely convex in front, sharply margined at the sides, the sides 

 rounded and narrowing from a little before the base to the apex, the hind angles acute ; the base 

 trisinuate, finely denticulate, and with a projecting tooth in the centre ; the surface somewhat thickly 

 granulate-punctate. Scutellum thickly punctured, deeply notched in the centre in front. Elytra rather 

 short, wider than the prothorax, acutely margined at the sides, somewhat pointed behind, the humeri 

 rounded ; shallowly punctate-striate to near the apex, the interstices flat and rugulosely punctate. Fifth 

 ventral segment subtriangularly emarginate at the apex in the male. Tarsal claws rectangularly dilated 

 in both sexes. 



Length 4f-6|, breadth 2^-3 millim. ( <$ $ .) 



