MALACOEHINUS. 589 



antenna* half the length of the body, black, the fourth joint one half longer than the third, the terminal 

 five joints strongly transversely dilated and acutely dentate at the apex ; thorax about one half broader 

 than long, distinctly narrowed at the base, the surface with a few scarcely visible punctures, rufous, 

 shining ; elytra nearly impunctate, testaceous, a broad transverse band below the middle, the apices, and 

 the extreme lateral margin, rufous, a transverse band at the base and the anterior edge of the central 

 band, black, the shoulders rufous ; tibiae black, armed with a small spine. 



Eab. British Honduras, Belize (Blancaneaux). 



This handsomely-marked species will be easily recognized by its coloration and the 

 structure of the antenna? in the male ; the elytral bands, with the exception of the 

 basal one, extend to the sutural and lateral margins. 



16. Malacorhinns scutellatus. 



Narrowly elongate, fulvous ; the head, antenna?, scutellum, and the breast and legs, black ; thorax impunctate ; 

 elytra finely rugose and closely punctured. 



Length 2| lines. 



Head broad, black, impunctate, impressed with an oblong fovea between the eyes ; the anterior edge ot the 

 clypeus and the sides of the labrum testaceous ; antennas half the leogth of the body, black, the first joint 

 fulvous at the apex, the third joint one half longer than the second ; thorax twice as broad as long", the 

 sides strongly narrowed at the base, nearly straight, the surface somewhat convex, impunctate, flavous 

 scutellum black; elytra closely punctured, the interstices slightly rugose ; the breast and the legs black 

 the tibiae mucronate ; the first joint of the posterior tarsi as long as the following two joints together 

 claws appendiculate. 



Eab. Mexico, Ciudad in Durango (Forrer). 

 A single specimen. 



17. Malacorhinus dilaticornis. (Tab. XXXIII. fig. 22, <? .) 



Black the lower part of the head, the basal joints of the antennae, the thorax, and the four anterior legs fulvous ; 

 elytra minutely punctured, black, a transverse band (or spot) before, and another band below the middle, 

 fulvous. 



J^Head with some fine punctures on the vertex, the latter black; the lower portion fulvous; the frontal 

 tubercles very broad, subquadrate ; antennae more than half the length of the body, the six lower joints 

 fulvous the rest black, the basal joint strongly swollen at the apex, the second joint very small, the third 

 joint greatly enlarged and dilated and with its lower surface concave, the fourth joint narrow at the base 

 and transversely widened at the apex, the remaining joints filiform and nearly equal in length ; thorax 

 subquadrate, slightly constricted at the base, fulvous, an elongate spot on each side, and another at the 

 middle near the base, black, the disc impunctate, with an obsolete depression on each side ; scutellum 

 black •' elytra very finely and closely punctured, narrowly elongate, black, a transverse band before the 

 middle and another slightly oblique one near the apex of each, fulvous ; the four anterior legs fulvous, the 

 femora and the tibi® with a black streak at their upper margin ; the first joint of the anterior tarsi greatly 

 enlarged, that of the intermediate legs less strongly widened. 



Hab. Mexico, Cuernavaca {Salle), Tonila in Colima (Edge). 



In the female the antennse and the tarsi are simple and the posterior femora much 



shorter. 



A male example from Cuernavaca is figured. 



