CHALCOLEPIDIUS. 283 



According to Candeze, this species resembles C. virens, Fabr., in general facies, but 

 differs from that insect in the very short third joint of the antennae, this character 

 bringing it near C. angustatus, &c. 



18. Chalcolepidius murinus. (Tab. XII. fig. 6, <s .) 



Elongate-oval, bronze-black, densely, uniformly clothed above and beneath with minute brownish-cinereous 

 scales. Head densely punctured, very broadly triangularly depressed in front ; antennae strongly serrate, 

 the third joint small, very short, not half the length of the fourth, acutely triangular. Prothorax longer 

 than broad, moderately convex, subparallel behind, the sides feebly rounded and converging anteriorly, 

 slightly sinuate behind ; the margins reflexed at the base ; the hind angles sharp,, not or scarcely 

 divergent; the base with a strongly bidentate median lobe; the surface closely, minutely punctate, and 

 obsoletely carinate down the middle. Scutellum obcordate, horizontal, deeply canaliculate anteriorly, 

 and obtusely bidentate in front, finely punctured. Elytra twice as long as the prothorax. subparallel in 

 their basal third, the sides gradually converging thence to the apex, the apices rounded ; the marginal 

 carina deflexed anteriorly, obsolete in front ; finely punctate-striate, the punctures deep and not hidden 

 by the scales ; the interstices equal in width, feebly convex, densely minutely punctate. Beneath densely, 

 finely punctate, the presternum, the middle of the meso- and metasternum, and a space along the centre 

 of the ventral segments 1-4, smoother and almost glabrous. Propleuree grooved on the inner side in 

 front. 



c? . Antennae more strongly serrate ; anterior and intermediate tibiae, and the apical joint of each tarsus, 

 ciliate ; fifth ventral segment with a broad space in the middle, widened posteriorly and extending to the 

 apex, almost impunctate and glabrous. 



Length 21^-25, breadth 6f-9± millim. ( c? 2 •) 



Hab. Mexico, Acapuleo in Guerrero {Edge). 



Three specimens, one of which has been examined by Dr. Candeze and returned as 

 unknown to him, with the following remarks attached : — " Near C. inops, but differing 

 from it in having the margins of the thorax not flattened and all the elytral striae 

 punctured." 



19. Chalcolepidius jansoni. (Tab. XII. fig. 7, ? .) 



Chalcolepidius jansoni, Cand. Revis. Elat. p. 165 (1874) 1 ; Bull. Soc. Ent. Belg. 1886, p. lxxiii 2 . 

 Hab. Nicakagua 2 (Salle), Chontales (Belt 1 , E. M. Janson 1 ). 



Fourteen specimens of this species are before me, all females. In this insect the 

 upper and under surfaces are uniformly clothed with minute, rather dull, subopalescent, 

 greenish scales. The sutural angles of the elytra are acutely produced. We figure 

 one of Candeze's types. 



20. Chalcolepidius boucardi. (Tab. XII. fig. 12, s .) 



Chalcolepidius boucardi, Cand. Revis. Elat. p. 169 (1874) * ; Bull. Soc. Ent. Belg. 1886, p. lxxiv \ 

 Hab. Mexico, Cuernavaca (JBoucard 1 2 , Salle). 



A male example of this species is contained in the Salle collection,, presumably the 

 type. The anterior tibiae have a few short teeth on the inner edge. 



202 



