24 Mr. Joseph S. Baly 071 the 



in length, the second andthird joints short, nearly equal, the fourth 

 niuch longer than the preceding two united, the three or four 

 lower joints pale piceo-fiavous, the three upper ones, the apex of the 

 eleventh excepted, yellowish white. Thorax broader than long; 

 sides rounded anteriorly, nearly parallel and sinuate posteriorly ; 

 disk convex, impunctate. Elytra oblong, dilated posteriorly, con- 

 vex, not plicate below the humeral callus, very finely punctured. 



Spec. 35. Diabrotica atromaculata. 

 Proc. Zool. Soc, 1889, p. 94. 



Anguste, oblonga-ovata, convexa, flava, nitida, pectore, seutello 

 capiteque nigris, antennis flavis, articulis intermediis piceis, 

 thorace laevi ; elytris crebre punctatis, utroque macula basali 

 cominuni,plaga magna humerali trigonata, intus profunde excavata 

 fasciaque pone medium, utrinque abbreviata, postice emarginata, 

 nigris. 



Var. A. Elytrorum fascia post-mediali interrupta, maculas 

 duas formanti. 



Long. 2| lin. 



Hah. Amazons, Santarem (Bates). My collection. 



Antennae filiform, the second joint short, the third about one- 

 half longer than the second, the fourth slightly longer than the 

 preceding two united ; the six or seven intermediate joints more or 

 less stained with piceous. Thorax slightly broader than long; 

 sides rather deeply sinuate from the base to the middle, slightly 

 dilated at the latter, thence converging towards the apex ; disk 

 convex, shining, impunctate. Elytra dilated posteriorly, convex, 

 slightly excavated on the suture below the scutellum, closely and 

 rather strongly punctured ; each elytron with three black patches, 

 one at the base common, pentangular, one on the humeral 

 callus large, triangular, extending downwards from immediately 

 below the basal margin to the middle of the elytron, its inner 

 sm^face deeply emarginate, lastly, one below the middle, 

 transverse, abbreviated at the suture and outer limb, its hinder 

 margin emarginate, black. 



Kather larger than D. distincta ; the markings on the 

 elytra, which sometimes change to dark piceous, are 

 more irregular than in that species ; there is also an 

 additional patch placed on the suture at its base. 



