236 MB. J. S. BALT ON THE COLOMBIAN 



antennis piceo-nigris, apice sordide albidis ; thorace rufo-flavo, disco 

 sat profunde subarcuatim excavato ; elytris extrorsum elevato-vittatis, 

 vittis apicem versus obsoletis ; interspatiis biseriato-punctatis, limbo 

 externo, ante apicem abbreviato, vittaque discoidali, a basi fere ad 

 apicem extensa, apice ampliata, albidis. Long. 2 lin. 

 Var. A. Elytris minus distincte elevato-vittatis, vitta discoidali albida 

 obsoleta. 



Ha}). Magdalena Eiver (type and var. A) ; Bogota (var. A). 



Head scarcely longer than broad, subtrigonate ; clypeus witb 

 a well-defined longitudinal ridge. Antennae slender, filiform, the 

 third joint twice as long as the second, equal in length to the 

 fourth ; nigro-piceous or black, the basal joint sometimes piceous ; 

 the two upper ones (the extreme apex of the terminal one ex- 

 cef»ted) obscure fulvous. Thorax half as broad again as long; 

 sides parallel and slightly sinuate from the base to beyond the 

 middle, thence obliquely converging to the apex ; disk smooth, 

 impressed with a deep, broad, sublunate excavation, which is 

 rather more deeply foveolate on either side. Elytra oblong, 

 scarcely dilated posteriorly, convex, slightly flattened along the 

 suture ; outer two thirds of each elytron elevate-costate, the inner 

 costa broader than the others ; all the costse gradually become less 

 defined below their middle, and entirely disappear before reaching 

 the apex of the elytron ; interspaces between the vittse biseriate- 

 punctate, inner disk obsoletely punctured. 



60. DiABROTiCA iNCERTA. Subelongata, postice vix ampliata; con- 

 vexa, nigra, nitida ; femoribus anticis quatuor subtus, posticisque basi, 

 pallide flavis ; thorace transverso, fulvo, disco bifoveolato, spatio inter 

 foveas depresso ; elytris oblongis, convexis, tenuiter punctatis, punctis 

 apicem versus deletis ; disco prope medium subtiliter elevato-vittatis, 

 vittis longe ante apicem obsoletis, spatiis inter vittas magis fortiter 

 subseriato-punctatis ; cseruleo-nigris, subnitidis, limbo marginali an- 

 gusto, ante apicem abbreviate, flavo. Long. 2 lin. 



Hob. Bogota ; Magdalena Eiver. 



Head trigonate ; anteunse slender, four fifths the length of the 

 body, entirely black. Thorax one half broader than long ; sides 

 straight and parallel from the base to beyond the middle ; disk 

 deeply bifoveolate, the space between the f ovese depressed. Elytra 

 oblong, convex, slightly excavated on the suture at the base ; 

 minutely punctured, the punctures entirely obsolete towards th.e 

 apex ; on the middle disk, below the humeral callus, are five or six 

 very fine but distinct elevated vittse, which extend downwaids for 



