46 LAMELLICOBNIA. 



cupreo tinctum : thorace (medio basi punctata excepta) laevi vel obsoletissime punetulato, linea impressa 

 dorsali nulla, basi immargiuato ; elytris erenato-striatis, interstitiis fere planis ; pygidio parum convexo, 

 lsevissimo, sulco marginali grosso et profundo ; segmentis intermediis ventralibus basi (praecipue ad latera) 

 longitudinaliter punctatis, apicali lato, laevi. 

 Long. 7 millim. 



Hah. Mexico, Presidio (Forrer), Panistlahuaca (Salle), Juquila (Hoge) ; Nicaragua 

 (Salle). 



Distinctly broader relatively to the length than C. illmsum, G. Tdugi, and G. guate- 

 malense ; broader even than C. capistratum, but with less dilated and rounded elytra 

 than that species, and the base of the thorax wholly immarginate. The numerous 

 examples from Juquila, and others from Panistlahuaca, are greenish-brassy-black, those 

 from Nicaragua coppery, and all are glossy. The pygidium varies a little in convexity, 

 but is never nearly plane as in G. illmsum, nor strongly convex as in C. guatemalense. 



A specimen from Juquila is figured. 



6. Chceridium candezei. 



Chceridium candezii, Harold, Col. Hefte, iii. p. 82 ; iv. p. 71 1 . 

 Hah. Panama 1 (coll. Bates, specim. typico). 



7. Chceridium poropyge. 



C. candezei proxime affine ; differt pygidio toto polito, convexo, medio fovea elongata impresso. Oblongo-ovatum, 

 elytris sat rotundatis ; capite thoraceque cupreis, nitidis ; elytris piceo-nigris (basi excepta), opacis ; clypeo 

 margine solum punctato ; thorace transversim quadrato, laevi, linea dorsali basali profunde impresso ; 

 elytris versus apicem planatis, acute sat profunde striatis, striis obsoletissime crenatis prope apicem 

 perparum profundioribus ; ventris segmentis intermediis margine anteriore crenatis, apicali dilatato et 

 politissimo. 



Long. 7 1 millim. 



Hah. Nicaragua, Chontales (Belt). 



Closely allied to C. candezei and G. simplex, but differing from both in the whole 

 surface of the pygidium being polished, and, further, in the centre being marked with 

 an impressed line or elongated fovea, which in one of the two examples is constricted 

 in the middle. The three species belong to a group which differs from the G. capis- 

 tratum series only in the elytral striae not being distinctly broader and deeper near the 

 apex. In both the apical border of the elytra forms a wheal or callus on which the 

 striae terminate before the apex itself. 



8. Chceridium seneo-micans. 



Chceridium ceneomicans, Harold, Col. Hefte, iii. p. 82; iv. p. 66 \ 



Hah. Panama, Bugaba, Volcan de Chiriqui, Pena Blanca (Champion). — South 

 America, Amazons 1 . 



Some of Mr. Champion's specimens are of the colour of the type-form, " viridi- 



