LUPERUS. 599 



(except at the base) with yellowish-white ; femora flavous, the knees and the tibiae and tarsi black ; the first 

 joint of the posterior tarsi as long as the following three joints together ; the posterior tibiae mucronate ; 

 claws appendiculate. 



Hab. Guatemala, Zapote (Champion). 



The single specimen obtained differs from any of its allies by the colour of the elytra. 



9. Luperus dissimilis. 



Obscure aeneous, the lower joints of the antennae and the legs more or less fulvous ; thorax bifoveolate; elytra 

 extremely closely and finely punctured, slightly rugose. 



Var. Thorax flavous. 



Length lf-2 lines. 



Head impunctate, metallic greenish or aeneous ; the frontal tubercles strongly raised, divided anteriorly by the 

 blunt apex of the clypeus ; antennae half the length of the body, obscure fulvous, each joint stained with 

 fuscous at the apex, the third joint twice as long as the second ; thorax scarcely broader than long, the 

 sides rounded be%e the middle, constricted at the base, the surface somewhat convex, with a few fine 

 punctures, and a round fovea on each side ; elytra with a very shallow sutural depression below the base, 

 obscure «eneous, the shoulders somewhat prominent and angular, the surface extremely closely and finely 

 punctured, the interstices slightly rugose ; legs flavous, the femora more or less stained with piceous ; the 

 first joint of the posterior tarsi as long as the following two joints together ; claws appendiculate ; pro- 

 sternum very narrow, but distinct ; the anterior coxal cavities open. 



Hab. Mexico, Chihuahua city, Jalapa, Morelia in Michoacan, Mexico city (Edge), 

 Guanajuato (Salle). 



Many examples. L. dissimilis seems very closely allied to L. torquatus, Lee, of which 

 Dr. Horn has kindly sent me some specimens for examination, but differs in the elytral 

 sculpture, the punctuation being closer and more irregular and consisting of small and 

 still smaller impressions ; in L. torquatus the punctures are finer and more scattered, 

 and the interspaces are very minutely granulate. Most of the specimens of L. dissimilis 

 are entirely bronze-coloured ; in some examples the thorax is flavous, and intermediate 

 degrees are also not wanting. Two specimens from Morelia are more convex and 

 widened posteriorly and apparently more strongly punctured, though not differing in 

 other respects. 



10. Luperus modestus. 



Obscure testaceous, the antennae and legs piceous ; thorax and elytra very finely punctured. 



Length l|-2 lines. 



Head not visibly punctured ; the frontal tubercles strongly marked, transverse ; eyes large and prominent ; 

 palpi piceous, the penultimate joint strongly incrassate; antennae two thirds the length of the body, 

 piceous, the basal joints sometimes more or less fulvous, the third joint twice as long as the second but 

 slightly shorter than the fourth joint ; thorax about one half broader than long, the sides very slightly 

 rounded, the anterior angles not prominent and each furnished with a single long hair, the surface 

 extremely finely and irregularly punctured ; elytra rather more distinctly punctured than the thorax, the 

 punctuation somewhat arranged in closely approached rows, the epipleurae extending below the middle; 

 tibiee piceous, the posterior pair armed with a small spine ; the first joint of the posterior tarsi rather 

 longer than the following two joints together; claws appendiculate; anterior coxal cavities open. 



Hab. Panama, Boquete in Chiriqui 3500 feet (Champion). 



