1889.] COLEOPTERA OF THE GENUS DIABROTICA. 95 



36. DiABROTICA ^NEIVENTRIS, Sp. nOV. 



Anguste ovata, postice ampliata, convexa, nigro-CBnea, nitida ; 

 tihiis, tarsis, scutello capiteqice nigris ; antennis lasi piceo- 

 fulvis, arficulis externis quatiior, ultimi (ajnce excepto) palliie 

 fiavis ; tliorace trifoveolato femorihusque flains, his nigro 

 lineatis ; elytris tenuiter, sat crebre punctatis, viridi-ceneis, 

 utrisque Umbo externa, maculis dnnhfs infra basin p)ositis, 

 fascia curvata vix pone medium, utrinque abbreviata, macu- 

 laque subapicali ad limbum adfixa, flavis. 



Long. .5 lin. 



Hab. Ecuador. 



37. DiABROTICA BIPARTITA, Sp. nOV. 



Oblonga, postice ampliata, convexa, flava, nitida ; capite tliorace- 

 que nigris, hoc transversim sulcata, basi anguste piceo ; 

 antennis flavis, articulis primo et intermediis nigris; elytris 

 postice pittullo ampliatis, convexis, infra basin excavatis, sat 

 crebre punctatis, disco antico, limbo externa excepto, fasciaque 

 angusta vix pone medium viridi-ceneis, spatio inter hanc fasciam 

 et discum anticum elevato. 



Mas. Elytris ante apicem jiixta suturam vitta brevi elevata 

 instructis. 



Long. 4 lin. 



Sab. Ecuador. 



38. DiABROTICA ERYTHROPTERA, Sp. HOV. 



Ovata, postice ampliata, convexa, nigra, nitida, elytris rvhris ; 



tliorace arcnatim sulcata, suleo trifoveolato ; elytris crebre 



punctatis. 

 Long. 3^ lin. 

 Sab. Peru. 



39- DiABROTICA ALBIDO-VITTATA, Sp. nOV. 



Ovata, postice paullo ampliata, convexa, nigro-picea, nitida, 

 femoribus basi flavis, capite tharaceque piceo-rufls ; antennis 

 nigris, articidis octavo nonoque albidis, thorace profunde 

 bifoveolato ; elytris piceo-nigris, subnitidis, elevato-vittatis, 

 casta tertia a sutura latiare, utrisque limbo externa castaque 

 tertia albidis, apicibus confluentibus. 



Long. 3 lin. 



Sab. Brazil. 



These descriptions are all based upon specimens in my own 

 collection. 



