and of uncharacterized species of HalticincB. 291 



carina linear, elevated, but less distinctly defined than in 

 many other species ; antennas more than three-fourths the 

 length of the body, robust. Thorax about one-fourth 

 broader than long ; sides slightly rounded, diverging from 

 the base towards the apex, anterior angles very obliquely 

 truncate, thickened obtuse ; disk transversely convex, 

 coarsely punctured, the punctures crowded at the base, 

 more distant on the hinder disk. Elytra much broader 

 than the thorax, oval, attenuated towards the apex, con- 

 vex, the humeral callus entirely obsolete, surface coarsely 

 and rather closely punctured. 



Longitarsus BucMeyi. 



Anguste ovatus, nitidus, subtus piceo-niger, pedibus 

 (femoribus posticis piceis exceptis) fulvis ; supra plumbeo- 

 nigra, antennis nigris, basi piceo-fulvis ; thorace tenuissime 

 ruguloso ; elytris oblongis, minute, subremote punctatis. 



Long. 1 lin. Hub. — Ecuador; collected by Mr. 

 Buckley. 



Head trigonate ; vertex and front shining, impunctate, 

 the latter impressed on either side within the eye with a 

 deep fovea ; encarpa transverse, contiguous, subovate ; 

 carina narrow, elongate ; antennte more than half the 

 length of the body, the three lower joints piceo-fulvous, 

 the fourth piceous, the rest black. Thorax half as broad 

 again as long ; sides rounded, their middle third sinuate, 

 the anterior third occiipied by the thickened anterior 

 angle, the apex of which is obtuse ; upper surface convex, 

 impunctate, nitidous, closely covered with very minute 

 rugosities, only visible under a lens. Scutellum trigonate, 

 obscure piceous. Elytra broader than the thorax, oblong, 

 their apices subacutely rounded ; above convex, very finely 

 and subremotely punctured, the humeral callus distinct. 



Longitarsus Fryellus. 



Anguste ovatus, convexus, piceus, nitidus, pedibus ely- 

 trisque pallide castaneis, illis piceo tinctis ; antennis flavo- 

 albidis, articulis primo (apice excepto) quinto ultimosque 

 apice piceis, sexto, septimo et octavo nigris; thorace la3vi; 

 elytris ovatis, ad apicem attenuatis, tenuitcr punctatis. 



Long. 1 lin. Hub. — Brazil. 



Vertex smooth, impunctate; carina elevated, linear; 

 encarpas ill-defined, subovate, oblique, contiguous ; antennae 



