13G 



Type — Clithoneis apicicomis. 



ChtJioneis is very similar in form to Luperus, but the compressed 

 dilated joints of the antenuge at once divide it from that genus. 



Chthoneis apicicomis. 



Elongata, parallela, modice convexa, metallico-cgBrulea, nitida, 

 antennarum articulo basali subtus, penultimo apice, ultimoque toto, 

 sordide albis ; thorace transverso, lateribus parallelis, anguste mar- 

 ginatis, medio obtuse angulatis, dorso laevi, tenuiter remote punctato, 

 elytris thorace paullo latioribus, parallelis, intra humeros longitu- 

 dinaliter depressis, confuse subfortiter punctatis. interspatiis disci 

 exterioris irregulariter transversim elevato-crenulatis. Long 3 — 3j lin. 



Hab. : Columbia. 



Genus — Btblitea. 



Corpus elongatum, parallelum ; caput exsertum ; antennis gra- 

 cilibus filiformibus, corporis longitudini sequalibus, articulis cylindricis, 

 primo curvato, ad apicem incrassato, secundo illo plus dimidio breviori, 

 tertio secundo fere duplo longiori, quarto et sequentibus longioribus, 

 inter se fere sequalibus ; oculis prominentibus, integris ; mento quadrato ; 

 palporum articulo ultimo conico, acuto ; palpis maxillarihus crassis ; 

 thorax transversus, dorso non sulcatus ; scutellum trigonum ; elytra 

 thorace latiora, parallela, confuse punctata; limho iniiexo fere ad 

 apicem distincto ; pedes sat graciles ; coxis anticis crassis, erectis, con- 

 tiguis ; femorihus posticis non incrassatis ; tihiis posticis apice muticis ; 

 unguiculis crassis, bifidis ; prosternum breve, pone apicem obsoletum. 



Type —Byhlitea Deyrollei. 



The absence of a spine at the apex of the hinder tibiae, the longer 

 basal joint of the tarsus of the same pair of legs, together with the 

 more parallel form of the elytra, separate this genus from Diahrotica, 

 to which otherwise it is closely allied. 



Byhlitea Deyrollei. 



Elongata, parallela, modice convexa, flava, nitida, oculis, antennis, 

 tibiis tarsisque nigris, capite thoraceque rufo-fulvis; elytris modice 

 convexis, sat fortiter, crebre punctatis, metallico-viridibus, margiue, 

 apice dilatato, fulvo ; thorace transverso, lateribus parallelis, medio 

 obtuse angulatis, dorso tenuiter, remote punctato. Long 3^ lin. 



Hab. : Columbia. 



{To he continued.) 



