METRIOPHILUS. 589 
Found in abundance in Chiriqui. Near WU. lynx, Faust, from Venezuela, but more 
elongate, the prothorax more coarsely punctate, the seriate, subquadrate punctures on 
the elytra as broad as the interstices. 
2. Metriophilus rugifrons, sp. n. 
Larger, broader, and more robust than M. Jugax; the rostrum stouter; the head coarsely, rugosely punctate ; 
the elytra with a large admixture of small brown scales, and fasciculate with coarse, ochreous scales; the 
femora acutely dentate, the tooth on the anterior pair long; the fifth ventral segment of the ¢ with a 
shallow transverse depression before the apex, the strongly arcuate ridge wanting. 
Length 53-63, breadth 24-31, millim. (¢ 9.) 
Hab. Mexico, Toxpam (Sallé); Panama, Volcan de Chiriqui (Champion). 
Four specimens. Perhaps an extreme form of M. fugar? The prothorax is 
relatively narrower than in MW. cribricollis. 
3. Metriophilus tenuis, sp. n. 
Oblong-ovate, narrow, shining, nigro-piceous, the antenne ferruginous; clothed with pale brownish scales 
intermixed with a short, abundant, semierect, pallid setosity. Head rugulosely punctate, flattened in 
front, the eyes widely separated ; rostrum strongly curved, about as long as the head and prothorax, 
somewhat gibbous at the base, rugulosely punctate and feebly tricarinate, the apex sparsely punctate, 
the antennz inserted beyond the middle, joint 2 of the funiculus shorter than 1, the club ovate. 
Prothorax nearly as long as broad, narrowed and feebly constricted in front; coarsely, confluently 
punctate. Scutellum small, convex. Elytra oblong, subparallel in their basal half, much wider than 
the prothorax ; coarsely seriate-punctate, the punctures placed in shallow striw, the interstices asperate, 
narrow, subcostate towards the sides, the suture raised. Beneath coarsely, rather sparsely punctate. 
Legs short; anterior femora sharply, the others feebly, dentate. 
Length 33, breadth 13 millim. (<¢.) 
Hab. Panama, Tolé (Champion). 
One specimen, in rather dirty condition. A close ally of M. fugax, but smaller and 
narrower, the elytral interstices asperate and narrow. 
4. Metriophilus miscellus, sp. n. 
Oblong-ovate, rather dull, nigro-piceous, the antenne ferruginous ; very sparsely clothed with narrow, minute, 
fulvous scales, intermixed on the elytra with fascicles of coarser similarly-coloured scales, the upper 
surface also somewhat thickly set with suberect, long, fulvous setw, the legs setose. Head rugosely 
punctate, the eyes widely separated ; rostrum strongly curved, about as long as the head and prothorax, 
shining, sparsely, finely punctate, the antennz inserted at the middle, joint 2 of the funiculus a little 
shorter than 1, the club ovate. Prothorax transverse, rounded at the sides anteriorly, narrowed and 
feebly constricted in front; finely, confluently punctate, obsoletely carinate at the base. Scutellum 
small, narrow. Elytra much wider than the prothorax, rather long, parallel in their basal third; with 
rows of oblong punctures, the interstices broad, almost flat on the disc, feebly convex at the sides. 
Beneath closely punctate. Legs rather long and slender; anterior femora rather sharply, the others 
feebly, dentate. 
Length 5, breadth 24 millim. (?92.) 
Hab. Panama, Volcan de Chiriqui (Champion). 
One specimen. Near M. nitidus, but larger, the prothoracic sculpture much finer, 
BIOL, CENTR.-AMER., Coleopt., Vol. IV. Pt. 4, October 1905. 4 EP 
