unchnractrriscd species of T^iahroiiea. 449 



Diabrotica Curtisii. 



Oblongo-ovata, postice paullo ampliata, convexa, flava, nitida, 

 scutello capiteque nifi^ris, antennis basi et apice flavis ; thorace 

 transverso, Itevi, profuude bifoveolato ; elytris oblongis, postice 

 paullo ampliatis, metallico-viridibus aut cyaneis, rude et fortiter 

 rugoso-punctatis, elevato-vittatis, puuctis inter vittas subseriatim 

 dispositis. 



Mas. — Antennis extrorsum distincte incrassatis, fere totis flavis, 

 elytro utroque ante apicem prope suturam callo valido, intus 

 emarginato, flavo instructo. Long. 3 lin. 



Hah. Mexico. 



A.ntenns filiform in the female, distinctly thickened towards the 

 apex in the male, the third joint twice the length of the second in 

 both sexes. Thorax nearly twice as broad as long ; sides nearly 

 parallel, deeply sinuate posteriorly ; upper surface smooth, deeply 

 and broadly bifoveolate, the space between the fovese depressed ; 

 in some specimens there is a small third fovea on the hinder 

 disk. Elytra oblong, slightly dilated posteriorly, coarsely and 

 deeply punctured ; each elytron with five or six elevated vittse, the 

 punctures between the vittse irregularly arranged in stria. Near 

 the suture just before the apex in the male is a large strongly 

 raised flavous callus, the inner side of which is broadly excavated 

 and bounded by a deep excavation, the surface of which is clothed 

 by a few fulvous hairs. 



Diabrotica cinctij^en nis. 



Oblongo-ovata, postice ampliata, flava, nitida, femoribus et tibiis 

 dorso, vertice antennisque nigris, harum articulis basalibus quatixor 

 Bubtus flavis {articulcB ultimce qtiatuor fractce sunt) ; thorace 

 transverso, late transversim excavato, crebre punctate, nigro 

 maculato; elytris oblongis, postice paullo ampliatis, dorso sub- 

 depressis, profunde et crebre punctatis, metallico-viridibus, limbo 

 externo flavo. Long. 3 lin. 



Hah. Peru, 



Antennae fihform, the third joint twice the length of the second. 

 Thorax nearly twice as broad as long ; sides diverging and sinuate 

 from the base to the middle, then obtusely angulate; upper surface 

 coarsely punctured, hinder disk impressed with a broad deep 

 hmate sulcation, which is more deeply foveolate at either end ; an 

 irregular patch on either side and a small spot on the hinder disk 

 black. Elytra closely covered with large deep round punctures 



