CH^LtOLEPIDIUS. 281 



19-43 millim. in length, and from 6-14 millim. in breadth, — also in the sculpture of 

 the thorax, some specimens having the disc of the latter very coarsely longitudinally 

 wrinkled. The anterior and intermediate tibiae, and the apical joint of each tarsus, are 

 ciliate in the male, characters not mentioned by Candeze or Erichson. In one specimen 

 from Juquila the scales on the upper and under surfaces are tinged with violaceous. 

 I have seen upwards of one hundred females, and thirteen males, of C. silbermanni. 

 A female from Pantaleon is figured. 



12. Chalcolepidius morio. 



Chalcolepidius morio, Cand. Monogr. Elat. i. p. 284 l j Revis. Elat. p. 167 2 ; Bull. Soc. Ent. Belg. 

 1886, p. Ixxiii 3 . 



Hab. Mexico x (coll. Janson, ex Laferte ; Salle, ex Sturm), Santo Domingo in Tehu- 

 antepec (Richardson), Oaxaca 2 3 . 



Five specimens of this species are before me, including one of the types from the 

 Laferte collection. The male was not known to Candeze ; it has the anterior and 

 intermediate tibiae, and the apical joint of each tarsus, ciliate. C. morio is very closely 

 allied to C. silbermanni, from which it chiefly differs in having the alternate interstices 

 of the elytra more strongly costate. ■'.':■ 



13. Chalcolepidius pruinosus. 



Chalcolepidius pruinosus , Er. Zeitschr. fur Ent. iii. p. 84 l ; Cand. Monogr. Elat. i. p. 276 2 ; Revis; 

 Elat. p. 165 3 ; Bull. Soc. Ent. Belg. 1886, p. lxxii \ 



Hab. Mexico 1_4 , Etla, Parada (Salle), Oaxaca (Salle, Hoge, coll. Janson). 



This insect is very closely allied to, and perhaps only a variety of, C. silbermanni, 

 from which it differs in its slaty-blue or greenish scales and more parallel shape. The 

 male characters are similar. 



14. Chalcolepidius forreri. (Tab. XII. fig. 5, ? .) 



Chalcolepidius forreri, Cand. Bull. Soc. Ent. Belg. 1886, p. lxxii 1 , 

 . Hab. Mexico, Tres Marias Is. (Forrer 1 ). 



We have received two female specimens of this species. C. forreri is allied to 

 C. silbermanni and C. pruinosus, but differs from both in the broader and much more 

 feebly costate alternate elytral interstices ; the elytra are impressed with rows of fine, 

 rather widely separated punctures, which are completely hidden by the scales. 



15. Chalcolepidius virginalis, (Tab. XII. figg. 2, <? ; 3, $ , var.) 



Chalcolepidius virginalis, Cand. Monogr. Elat. i. p. 288 1 -, Revis. Elat. p. 168 2 ; Bull. Soc. Ent. 

 Belg. 1886, p. Ixxiii 3 . 

 biol. centr.-amer., Coleopt., Vol. III. Pt. 1, November 1894. 2 



