136 SEKKICORNIA. 



Bather shorter and less convex than L. ares. The head is moderately broad, not 

 very deeply impressed in front, with the central impressed line and the mouth brassy. 

 The thorax has distinct punctures placed not very closely together all over the surface. 

 The elytra are not quite so broad behind the middle as at the shoulders, and then 

 narrowed to the apex (being a little shorter than in L. ares, they are not quite so 

 gradually acuminate at the apex) ; they have fine but distinct punctures, which show 

 a tendency to form lines ; there is a shallow, slightly rugulose impression at the side, 

 below the shoulder, and another behind the middle ; and there is an oblique fairly 

 well-marked impression at some distance from the apex, nearly touching the suture. 



A single specimen from Cordova, Mexico (Salle), may perhaps be a variety of this 

 species. It differs in being uniformly brownish-seneous above ; and the elytra are a 

 trifle more acuminate, and have an additional round impression in the middle of the 

 disc of each. 



A single example from Guatemala city (Champion) differs from the type in being 

 smaller, 1J lines long, of a brassy colour, very slightly tinted with coppery, with the- 

 punctuation of the elytra rather more irregular. 



1/ 3. Lius variabilis. 



Convexus, nitidissimus, subtus niger ; capitis vertice, thorace scutelloque aureo-seneis ; elytris elongatis, postice 

 attenuates, striato-punctatis, obscure viridi-seruginosis, vel rufo-purpureis, vel cyanescentibus, ante apicem 

 levissime oblique impressis. 



Long. 1|-1| lin. 



Hab. Guatemala, Chiacam, San Joaquin, and San Geronimo in Vera Paz (Cham- 

 pion). 



This is a comparatively long and narrow species. The head is not very broad, 

 impressed in front, with the lower part of the base obscure green, the vertex golden- 

 brassy. The thorax is not much narrowed in front, with the sides gently arcuate, 

 with a few punctures scattered over the surface, especially at the base. The elytra are 

 rather long, distinctly punctured in lines, with a few punctures on the interstices ; 

 a little narrower before the middle than at the shoulders, and then obliquely and 

 gradually narrowed to the apex. 



The majority of the specimens have the elytra of a dark bluish-green, often tinted 

 with reddish-coppery at the sides, this latter colour sometimes spreading nearly all over 

 the surface ; one example has the elytra rich reddish-copper, verging on purple. 

 These varieties all occur at San Geronimo with the typical form. 



\/ 4. Lius parvulus. 



Niger, nitidissimus ; capite antice aeneo ; elytris striato-punctatis, cyaneis vel viridi-cyaneis. 



Long. 1-1 \ lin. 



Var. Capite thoraceque lsete cupreis vel cupreo-aeneis. 



Hab. Panama, Bugaba 800 to 1500 feet, Volcan de Chiriqui 2000 to 4000 feet, 

 Taboga I. (Champion). 



