46 EKOTYLIDJE. 



proper. The species are larger in size, though scarcely equal to the smaller forms of 

 Megischyrus ; and the colour is very different, being usually a beautiful blood-red, with 

 bluish elytra banded with yellow. 



The species all inhabit Central or South America. 



1. Callischyrus venustus. 



Ischyrus venustus, Lac. Monogr. Erotyl. p. 109 \ 

 Callischyrus venustus, Crotch, Cist. Ent. i. p. 434 a . 



Hab. Mexico, Yucatan 1 2 . — South Ameeica, Colombia J 2 . 



This species has not been met with by any of our collectors. Specimens labelled 

 Yucatan are, however, not uncommon in collections. 



2. Callischyrus amoenus. (Tab. II. fig. 25.) 



Lybas amoenus, Guerin, Rev. Zool. 1841, p. 155 \ 



Ischyrus amcenus, Lac. Monogr. Erotyl. p. 107 2 (nee Atlas Gen. Col.). 



Callischyrus amoenus, Crotch, Cist. Ent. i. p. 435 \ 



Hab. Mexico x 2 3 , Jalapa, Trapiche (Edge), Orizaba (SalU) ; Costa Rica, Irazu 

 {Bogers). 



This very beautiful and well-known species appears to be not at all uncommon 

 where it occurs in Mexico. The capture of two specimens by Eogers in Costa Rica 

 is certainly a remarkable fact, and shows that many species may be more widely 

 distributed than is generally supposed ; these examples only differ from typical ones 

 in having the apex of the elytra wholly blood-red in colour, instead of being marked 

 with red and black. 



An Orizaba specimen is figured. 



Obs. — The figure in the Genera Col. Atlas, t. 131. f. 6, is not that of a specimen of 

 this species, but appears to be taken from a specimen of C. candezei ; the antennae are 

 imaginary, and do not represent those of any allied species. 



3. Callischyrus candezei. (Tab. II. fig. 24.) 



Callischyrus candezei, Crotch, Cist. Ent. i. p. 434 \ 



Hob. Guatemala 1 (SalU), Totonicapam, Capetillo, Calderas, San Geronimo, Purula 

 (Champion). 



Resembles C. amoenus, but is easily to be recognized by the two black spots on the 

 thorax, by the black epipleurse of the elytra, and by the apex of the latter being 

 wholly black. 



MYCOTRETUS. 



MycotretuSj Lacordaire, Monogr. Erotyl. p. 132 (1842) (Dej. Cat.; Chevr.). 

 Mycotretus is distinct from Ischyrus as now restricted by the eyes being finely 



