SPECIES OP THE GENTJS DIABEOTICA. 247 



71. DiABROTiCA jucuNDA. Ovata, postice ampliata, valde convexa, 

 piceo-nigra aut nigra, nitida, capite thoraceque rufo-fulvis, pedibus 

 antennisque flavis, his extrorsum infuscatis, scutello piceoj thorace 

 minute, remote punctato, disco utrinque oblique foveolato ; elytris 

 late oblongis, apicem versus ampliatis, apice obtusis ; convexis, infra 

 basin prope suturam leviter transversim depressis ; subseriato-punc- 

 tatis, flavis, utrinque puncto humerali, fascia irregulari ante medium 

 maculaque trigonata iuter medium et apicem posita, piceis. Long. 2 

 liu. 



Mas. Facie inferiori profunde excavata ; antennis filiformibus. articulo 

 tertio quam quartus breviori. 



Hah. Colombia. 



Head trigonate ; lower face occupied by a deej) concave exca- 

 vation, which covers the upper four fifths of the clypeus ; antennae 

 filiform, the third joint distinctly shorter than the fourth. 

 Thorax one half broader than long ; sides parallel and sinuate 

 from the base to the middle, thence obHquely converging to the 

 apex ; upper surface very finely and remotely punctured ; disk 

 impressed on either side with an oblique oblong fovea. Elytra 

 broadly oblong, dilated towards the apex, the latter obtuse ; 

 strongly convex, slightly depressed transversely below the basilar 

 space, subseriate-punctate ; flavous, each elytron with a small spot 

 on the humeral callus, a narrow irregular fascia just before the 

 middle, together with a triangular patch situated between the 

 middle and the apex, piceous. 



72. DiABROTicA BELLA. Ovata, postice ampliata, valde convexa, 

 nitida, subtus nigra, pedibus flavis ; supra rufa, antennis fulvis, apice 

 infuscatis ; thorace Isevi, remote et tenuiter punctato, utrinque pro- 

 funde foveolato ; elytris late oblongis, postice paullo ampliatis, apice 

 obtusis ; subventricosis, infra basin transversim excavatis, fortiter sub- 

 seriatim punctatis, a paullo infra basin fere ad apicem distincte 

 elevato-vittatis ; rufo -piceis, fasciis duabus, una infra basin, altei-a vix 

 pone medium positis, margineque apicali fulvis. Long. 3 lin. 



Mas. Facie inferiori profunde transversim excavata, clypeo antico tumido; 

 antennarum articulo secundo subclavato, tertio illo vix duplo longiori, 

 quarto pi-secedentibus duobus conjunctis longiori, basi paullo curvato. 



Hah. Magdalena E-iver. 



Front finely punctured, faintly rugalose ; upper half of the 

 clypeus in the (S deeply excavated, the lower portion of this 

 segment thickened on the medial line ; lower face in the $ trans- 

 versely convex, coarsely punctured ; antennae in the S with the 



