272 SEKEICOENIA. 



2. Hemirhipus fascicularis. 



Elaterfascicularis, Fabr. Mant. Ins. i. p. 171 1 ; Ent. Syst. i. 2, p. 216 2 ; Oliv. Ent. ii. no. 31, p. 8, 



t. 5. fig. 56 3 . 

 Hemirhipus fascicularis, Latr. Regne Anim. iv. p. 454 4 ; Cand. Monogr. Elat. i. p. 252, t. 5. fig. 2 s ; 



Revis. Elat. p. 154 G ; Lee. Trans. Am. Phil. Soc. x. p. 485 \ 

 Hemirhipus venosus, Cast, in Silb. Rev. Ent. iv. p. 13 s . 



Hab. North America, New York, Baltimore 7 , Maryland, North Carolina 7 , Texas 7 . — 

 Mexico 8 , Temax in North Yucatan. — Amazons ; Brazil 5 . 



We have received two specimens of this species from Yucatan. 



3. Hemirhipus decorus. (Tab. XL fig. 19, s .) 



Hemirhipus decorus, Cand. Monogr. Elat. i. p. 254 x ; Revis. Elat. p. 155 2 . 

 Hab. Mexico 1 2 ; Nicaragua, Chontales (JE. M. Janson). 



There is a Nicaraguan specimen of this species in the Janson collection ; it is of 

 the male sex and is figured on our Plate. 



CHALCOLEPIS. 



Chalcolepis, Candeze, Monogr. Elat. i. p. 244 (1857); Revis. Elat. p. 159. 



This genus contains a single species, peculiar to Central and South America. 



l. Chalcolepis luczoti. (Tab. XL fig. 16.) 



Chalcolepis luczotii, Cand. Monogr. Elat. i. p. 245 x ; Revis. Elat. p. 159 2 . 



Hab. Mexico (coll. Janson) ; Guatemala, Purula and Senahu in Vera Paz (Champion) ; 

 Nicaragua (Salle 2 ), Chontales (Belt, Janson); Costa Rica (Van Patten); Panama] 

 Bugaba (Champion), Chiriqui (Trbtsch).— South America, Colombia 2 , Cayenne K 



Varies in the sculpture of the thorax and in the form of the scutellum; in some 

 specimens the sides of the thorax are angulate before the middle. An example from 

 Nicaragua is figured. 



Group CHALCOLEPIDIINI. 



CHALCOLEPIDIUS. 



Chakolepidius, Eschscholtz, in Thon's Archiv, ii. 1, p. 33 (1829) ; Candeze, Monogr. Elat. i. p. 259. 

 This genus contains upwards of sixty described species, all American, ranging from 

 the Southern United States to Chili and Uruguay ; one species, the South-American 

 C. erythroloma, Cand., has been introduced into the Sandwich Islands, and has been 

 described under a separate name, C. albertisi, Cand. Thirty-two species are here 

 enumerated from within our limits, more than half of which are exclusively Mexican. 

 They may be conveniently grouped by the form of the scutellum, the grooving or not 

 of the propleurse, and the male characters. The surface in many species is clothed 



