84 Mr. Joseph S. Baly on the 



Spec. 156. Diahrotica viridans. 

 Proc. Zool. Soc, 1889, p. 93. 



Subelongata. postice paullo ampliata, convexa, prasina, nitida, 

 antennis, pectore abdomineque pallide piceis, pedibus flavo-viridi- 

 bus, thorace convexo, fere impimctato ; elytris sat crebre piinctatis, 

 disco exteriori sulcis nonnullis longitudinalibus leviter impresso. 



Long. 2^ lin. 



Hab. Brazil, Constancia (Gray). Coll. Fry and 

 Baly. 



Head not longer than broad, triangular, labrum pale piceous ; 

 clypeus with a broad but ill-defined longitudinal ridge ; antennae 

 nearly equal to the body in length, filiform, the second and third 

 joints short, nearly equal, the fourth as long as the preceding two 

 united. Thorax one -fourth broader than long ; sides nearly 

 parallel and slightly sinuate below the middle, very slightly con- 

 verging anteriorly, all the angles subacute; disk convex, im- 

 punctate. Elytra narrowly oblong, slightly dilated posteriorly, 

 their apices regiilarly rounded ; above convex, faintly depressed 

 transversely below the basilar space, finely but rather strongly 

 punctured, plicate below the humeral callus, the subhumeral ridge 

 extending below the middle; on its inner side are several very 

 shallow longitudinal sulcations. 



Spec. 157. Diahrotica chloris. 



Anguste ovata, postice ampliata, convexa, prasina, antennis 

 nigris, basi piceo-fulva, articuUs penultimis dixobus albidis ; pedi- 

 bus piceo-fulvis, femoribus posticis quatuor interdum viridi-flavis ; 

 thorace nitido, non foveolato ; elytris lateribus obsolete pUcatis, 

 crebre tenuiter punctatis. 



Long. 3 lin. 



Hah. Upper Amazons. My collection. 



Head triangular ; clypeal ridge well-defined ; antennae filiform, 

 more than four-fifths the length of the body, the second joint 

 short, the third one-half longer, the fourth exceeding in length the 

 preceding two united ; black, the five lower joints piceo-fulvous, 

 the ninth and tenth yellowish white. Thorax not broader than 

 long ; sides straight and parallel from the base nearly to the apex, 

 slightly rounded and converging before reaching the latter ; upper 

 sui'face smooth and shining, non-foveolate, sides rather broadly 

 margined. Elytra finely and closely punctured, obsoletely plicate 

 on the sides, the subhumeral costa continued as far down as the 

 joiiddle, bordered within by a shtjrt shallow sulcatiou, 



