COLENIS.—ANISOTOMA. 87 
Am. Ent. Soc. viii. p. 293, t. 6. f. 23) in the punctured surface of its whole body, and 
in the larger size of the seventh joint of its antenne. 
2. Colenis crassicornis, sp. n. 
Ovalis, valde convexa, nitida, castanea; capite modico, levissime transverse strigoso; ore atque clypeo 
flavis; oculis sat magnis, sat prominentibus; pronoto quam caput sat longiore, multo latiore, prope 
basin latissimo, levissime transverse strigoso, impressionibus duabus foveolatis prope basin, inter sese 
atque latera pronoti equidistantibus, atque etiam punctis remotis indistinctis in disco impresso, lateribus 
marginatis et leviter rotundatis, margine basali fere recta angulis obtusis; elytris semiovalibus, quam 
caput atque pronotum multo longioribus, haud latioribus, prope humeros latissimis, sat profunde transverse 
strigosis, punctis distinctis irregulariter striatim dispositis, atque stria suturali profunda ab apice fere ad 
scutellum extensa impressis, lateribus marginatis et leviter rotundatis, apice obtuso ; pedibus robustis, 
rufo-testaceis, tibiis plus minusve dilatatis, intermediis externe spinosis, tarsis robustis, 5-, 4-, 4-articu- 
latis ; antennis brevibus, robustis, rufo-testaceis, clavis valde incrassatis. Long. corp. 19 lin. = 1-25 millim. 
Body oval, very convex, shining, castaneous. Head moderate, very faintly transversely strigose ; mouth and 
entire clypeus yellow; eyes rather large and rather prominent; antenne short and robust, rufo- 
testaceous, with the club much incrassated. Thorax rather longer and much broader than the head, 
widest near the base, very faintly transversely strigose, with two foveolate impressions near the base 
equidistant from each other and from the sides, and minute remote punctures on the disc; sides 
margined and faintly rounded; basal margin almost straight, with the angles obtuse. Scutellum 
moderate, triangular, and smooth. lytra semioval, much longer but not broader than the head 
and thorax, widest near the shoulders, deeply transversely strigose, with distinct punctures irregularly 
disposed in longitudinal striw, and a deep sutural stria extending from the apex nearly to the scutellum ; 
sides margined and slightly rounded; apex obtuse. Legs robust, rufo-testaceous ; tibize more or less 
dilated, the intermediate pair spinose on the outer side; tarsi robust, 5-, 4-, 4-jointed. Underparis 
rufo-testaceous. 
Hab. Guatemata, Capetillo (Champion). One example. 
Differs from C. punctulata in its narrower form, fainter and diverse sculpture of its 
head and thorax, more deeply strigose elytra with a long and deep sutural stria, shorter 
and much more robust antenne, and in its paler colour. 
ANISOTOMA. 
Anisotoma, Illiger, Kugel. Verz. Kaf. Preuss. p. 69 (1798). 
Body more or less ovate, not contractile, very convex. Head rather large, without antennal grooves beneath. 
Thorax generally large, and widest towards the base. Hlytra entire. Antenne 11-jointed, sometimes 
short; club 5-jointed, with the eighth joint much smaller than the seventh. Palpi sometimes rather 
long, with the terminal joint in all cylindrical and obtusely pointed. Prosternum short ; episterna very 
small; epimera very small, almost rudimentary ; coxal cavities very large, pyriform, with a large foramen 
at the outer extremities, contingent, partly closed behind by the inflexed portion of the pronotum. Meso- 
sternum large, anteriorly produced into a point; episterna very large, each nearly equal to the sternum ; 
epimera moderate, extending to the coxal cavities; coxal cavities very large, pyriform, contingent. 
Metasternum rather short, not extending to the sides of the body ; episterna rather small, not reaching to 
the cox ; epimera narrow, reaching to the coxee: cox very large, almost contingent. Venter composed 
of six segments. Legs moderate, sometimes long; tibie generally spinose ; tarsi moderate, 5-, 5-, 4- 
jointed. 
This genus contains a large number of described species, the majority of which 
