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PSEUDOPENTAETHEUM. 



15 



Tire groove not extending on to the head Species 2. 



Rostrum without definite median groove towards the base Species 3-6. 



Head transversely depressed and more or less distinctly foveate between the eyes. 



[Phixeophagomorphus, WolL] 



Rostrum distinctly grooved down the middle towards the base Species 7 



Rostrum obsoletely grooved down the median third . . . Species 8. 



Rostrum without definite median groove Species 9-13. 



i* 



1. Pseudopentarthrum lineifrons, sp. n. 



Moderately elongate, convex, subcylindrical, shining, black, the antennse and tarsi ferruginous. Head very 

 sparsely, minutely punctate, flattened and feebly longitudinally sulcate between the somewhat prominent 

 eyes, the fine median groove extending forwards along the basal half of the rostrum, the rostrum itself 

 very short and broad, closely punctate, and with its apical portion transversely quadrate. Prothorax 

 nearly as long as broad, subconical, obsoletely constricted in front, closely, rather finely punctate. Elytra 

 comparatively short, much wider than the prothorax, convex, parallel in their basal half, with rows of 

 subapproximate punctures placed along faintly-impressed narrow striae, the interstices narrow, almost 

 flat, and finely uniseriate-punctate. 



Length 2, breadth -| millim. 



Hab. Guatemala, Duenas (Champion). 



A smalL moderately elongate, convex form, with a very short, broad, finely sulcate 

 rostrum, the head without transverse frontal depression, the prothorax rather narrow 

 and subconical, the elytra comparatively short and cylindrical, closely seriate-punctate, 



d with 



pecimen 



2. Pseudopentarthrum angustulum, sp n. 





Moderately elongate, narrow, subcylindrical, convex, shining, black, the antennae, tibise, and tarsi ferruginous. 

 Head very sparsely, conspicuously punctate, slightly depressed between the eyes, the latter small; 

 rostrum short, stout, slightly constricted at the base, sparsely punctate, the basal portion faintly sulcate 

 anteriorly. Prothorax as long as broad, convex, slightly narrowing forwards, feebly constricted in front, 

 closely, somewhat coarsely punctate, with indications of a smooth median line. Elytra broader than the 

 prothorax, very gradually widened to a little beyond the middle and then arcuately narrowed to the 

 apex; rather coarsely punctate-striate, the sutural stria deeply impressed, the interstices somewhat 

 convex and each with a row of scattered extremely minute punctures. 



Length 2^, breadth | millim. 





Hab. Mexico, Atoyac in Vera Cruz (II. //. S. 



One specimen. A small, narrow, convex, po 



rly widened form, with the head 



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very slightly depressed between the eyes, the basal portion of the rostrum fai 



the puncturing of 



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3. Pseudopentarthrum mexicanum, sp. n. 



Moderately elongate, conico-cylindric, shining, black, the antennae and tarsi ferruginous. Head with a few 

 scattered punctures, slightly depressed and obsoletely longitudinally grooved between the eyes, the 

 latter rather large ; rostrum very short and stout, sparsely punctate, the basal portion obsoletely grooved 

 anteriorlv. Prothorax about as long as broad, convex, oval, scarcely constricted in front, closely, 

 uniformly punctate. Elytra broader than the prothorax, gradually widened to about the middle; with 













