SPECIES OP THE GENUS DIABKOTICA. 227 



rate; sides parallel, slightly sinuate, very slightly and obtusely 

 angled before the middle, thence slightly converging to the apex, 

 the anterior angles obtuse ; disk impressed on either side with a 

 large shallow fovea. Elytra oblong, scarcely dilated posteriorly, 

 granulose, closely punctured ; outer disk with three or four obso- 

 letely thickened, vittse, the spaces between longitudinally concave, 

 the interspace below the humeral callus more deeply excavated 

 than the others ; the anterior green patch forms a broad medial 

 fascia, abbreviated on the extreme lateral and sutural margins. 



32. DiABROTiCA Chapuisi. Anguste oblonga, postice pauUo ampliata, 

 viridis, nitida; postpectore, pedibus, coxis, femoribusque (his basi 

 cxceptis), capite scutelloque nigris ; thorace subquadrato, Isevi, utrin- 

 que obsolete foveolato ; elytris crebre punctatis, infra eallum humeralem 

 breviter longitudinaliter sulcatis; nigris, fascia communiprope medium, 

 ad limbum externum abbreviata, apiceque viridibus. Long. 2| lin. 



Hah. Paine : unique in the collection of H. Steinheil. 



Front impressed with a deep fovea ; carina raised but not well 

 defined ; antennae filiform, black, the basal joint piceous beneath; 

 second and third joints short, nearly equal ; fourth longer than the 

 preceding two united. Thorax slightly broader than long ; sides 

 straight and parallel, indistinctly angled before the middle, thence 

 obliquely converging to the apex, apical angles obliquely truncate ; 

 upper surface smooth and shining, faintly impressed on either 

 side with a very shallow ill-defined fovea. Elytra broader than 

 the thorax, slightly increasing in width from the base towards the 

 apex, closely punctured, interspaces granulose, longitudinally 

 suicate below the humeral callus. 



33. DiABROTiCA Sallei. Elongato-ovata, convexa, nitida, subtus 

 flava ; prosterno prasino, scutello metasternoque nigris, hoc griseo seri- 

 ceo, tibiis tarsisque piceis ; supra prasina, capite rufo-piceo, antennis 

 sordide fulvis; thorace Isevi, utrinque fovea sat profunda impresso ; 

 elytris tenuiter subcrebre punctatis ; utrisque limbo laterali, apice, 

 maculis duabus infra basin, his transversim positis, fasciisque duabus, 

 utrinque abbreviatis, una vix ante medium, altera inter medium et 

 apicem, flavis. Long. 2 lin. 



Sab. A single specimen from Colombia in H. Steinheil's col- 

 lection ; also Gruatemala, my collection. 



Eront impressed just above the encarpse with a large deep 

 fovea ; encarpse thickened, transverse, contiguous ; carina raised, 

 well defined, narrowly elongate ; antennae filiform, the third 

 ioint about one fourth longer than the second, scarcely more 



