SoutJi American siwcies of Diahrotica. 65 



Near 7). extensa ; separated by the pale basal joints 

 of the antennae, more deeply excavated thorax, and less 

 strongly punctured elytra. 



Spec. 114. Diahrotica extensa. 



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



Subelongata, postice ampliata, convexa, flava, nitida, pectore, 

 oculis, labro antennisqiie (his ad apicem exceptis), nigris ; thorace 

 leviter excavato, utrinqiie obsolete foveolato ; elytris subrugulosis, 

 sat crebre pimctatis, ad latera plicatis, costa siibhumerali fere 

 ad apicem extensa ; utroqne linea siiturali, postice abbreviata 

 vittaqiie sublatei'ali super costam humeralem posita, nigris. 



Long, 2| lin. 



Hah. Brazil, Eio Janeiro {Fry) ; Bahia. Coll. Fry 

 and Baly. 



Head triangular, not longer than broad ; clypeus with its longi- 

 tudinal ridge ill-defined ; antennae filiform, three-fourths the length 

 of the body, the second joint short, ovate, the third slightly longer, 

 obeonic, the fourth longer than the preceding two united ; black, 

 the tln-ee upper joints pale flavous. Thorax scarcely one-fourth 

 broader than long ; sides parallel and slightly siniiate from the 

 base to beyond the middle, thence rounded and converging towards 

 the apex, anterior and hinder angles distinctly produced, subacute ; 

 above convex, excavated on the hinder portion of the disk, and 

 impressed more or less distinctly on either side with a shallow 

 fovea. Elytra narrowly oblong, slightly dilated posteriorly, their 

 apices regularly rounded ; convex, rather closely pimctured, sub- 

 rugulose ; plicate below the humeral callus, subhumeral costa 

 extending downwards nearly to the apex of the elytron, curving 

 inwards before its termination. 



In a specimen from Bahia, in my own collection, the 

 three basal joints of the antennae are pale piceous, and 

 there are faint traces of several longitudinal sulcations 

 on the disk of each elytron ; in all other respects it 

 agrees with the typical form. 



Spec. 115. Diahrotica nigroscutata. 

 Diahrotica scutcllata, Baly. 

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



Subelongato-ovata, postice ampliata, convexa, liava, nitida, 

 oculis scutelloque nigris, pectore, ore anteuuisque piceis ; thorace 

 TRANS. ENT. SOC. LOND. 1890, PART I. (APRIL,) F 



