SCLOCHARIS.—EUSCLERUS. . 575 
convex, extending seven eighths of the length of the sides. Elytra very finely punctate, 
the apical margin pallid. Legs slender, the front tarsi not dilated. Unique. Closely 
allied to the Amazonian Lithocharis oculata, Sharp, but rather smaller, the thorax 
shorter and not so visibly punctate, and the pallid colour at the extremity of the elytra 
less extensive. 
17. Sciocharis perdita. 
Ferruginea, capite minore fuscescente, antennis pedibusque testaceis ; dense subtilissimeque punctulata. 
Long. 2? millim. 
Hab. Panama, David (Champion). 
Head rather small, the eyes extending the whole length of the sides, but not extremely 
convex, the vertex straight, the surface very feebly punctate, not shining. Thorax rather 
narrower than the head, rather broader than long, slightly narrowed behind, closely 
covered with a minute granular punctuation and with a vague smooth line along the 
middle. Elytra rather short, closely and finely punctate. Front tarsi slightly dilated. 
Two examples. 
18. Sciocharis flavipennis. 
Fusco-nigra, antennis pedibusque testaceis, elytris pallide flavis ; dense subtilissimeque punctulata. 
Long. 34 millim. 
Hab. Panama, Bugaba (Champion). 
Head subquadrate, the eyes extending scarcely half the length of the sides; surface 
opaque, scarcely visibly sculptured, feebly tomentose. Thorax subquadrate, excessively 
finely punctate, canaliculate at the base along the middle. Elytra a little longer than 
the thorax, scarcely visibly punctate, almost white. Legs rather stout, pale yellow ; 
front tarsi very feebly dilated. 
This species is readily identified by the remarkably pallid wing-cases. ‘Two examples 
were obtained. 
EUSCLERUS. 
Caput suborbiculare, oculis maximis. Antenne breviuscule, parum setosx, apicem versus paullo crassiores. 
Tarsi posteriores graciles, evidenter quinque-articulati, articulo basali quam secundus bene longiore; 
anteriores simplices. 
Labrum rather small, rounded in front, but divided by a deep angular incision almost 
to the base, apparently without denticulation. Mandibles short, with feeble teeth. Penul- 
timate joint of the maxillary palpus short’and broad, with truncate apex. Neck of the 
head moderately broad. Front of the pronotum rounded. Prosternum rather large. 
Legs slender ; hind tarsi with the fourth joint simple, conspicuously interposed between 
the third and the fifth, the basal joint a good deal longer than the second. 
_ The position of this genus is rather doubtful, but I opine it will be found near to 
Sciocharis ; still, as the structure of the labrum and maxillary palpus, so far at least as 
