18 Mr. Joseph S. Baly on the 



margiueni adfixa fasciaque angusta \ix pone medium posita, ad 

 sutiiram abbreviata, prasinis. 

 Long. 3 lin. 



Hab. Cayenne. Coll. Jacoby [type) and Baly. 



Head triangular ; antennas slender, filiform, the second joint 

 short, the third nearly twice its length, the fourth as long as the 

 preceding two united, the four lower joints flavo-piceous, the three 

 upper ones white, the rest black. Thorax about one-fourth broader 

 than long ; sides parallel and slightly sinuate from the base to 

 beyond the middle, thence slightly rounded and converging 

 towards the apex ; upper surface shining, disk impressed on either 

 side with a very shallow fovea. "■= Elytra distinctly and rather 

 closely punctured, plicate below the humeral callus. 



Spec. 23. Diabrotica riridi-jMstulata, Baly. 

 Journ. Lin. Soc, xix., p. 226, 1886. 

 Hah. Colombia. Coll, Oberthiir {type). 



Spec. 24. Diabrotica Chajmisi, Baly. 

 L. c., p. 227. 

 Hah. Colombia. Coll. Oberthiir (type). 



Spec. 25. Diahrotica lanthe. 



Elongata, posticeleviter ampliata, convexa, flava, nitida, pectore, 

 tibiis, tarsis, scutello capiteque nigris, antennarum apice albido • 

 thorace trifoveolato, foveis transversim positis ; elytris distincte, 

 sat crebre punctatis ; laete cyaneis, limbo externo, apice ampliato, 

 fasciaque communi vix pone medium posita, extrorsum abbreviata, 

 fiavis. 



Long. 4 lin. 



Hab. Ecuador (Buckley). My collection ; a single 

 specimen. 



Head not longer than broad ; clypeal ridge raised, ill-defined on 

 the sides ; antenmc filiform, nearly three -fourths the length of the 

 body, the second joint short, the thnd sHghtly longer, the fourth 

 longer than the preceding two united ; black, the three outer joints, 

 the extreme apex of the terminal one excepted, yellowish white. 

 Thorax one-third broader than long ; sides rounded anteriorly, 



■-- Mr. Jacoby, in his diagnosis, mentions a third fovea less dis- 

 tinctly impressed ; this is obsolete in the specimen given me 

 bv him. 



