60 Mr. Joseph S. Baly on the 



distinctly punctured; subhumeral ridge broad, very slightly 

 elevated, extending from the humeral callus to just below the outer 

 and hinder angle of the elytron. 



Rather broader than D. trifoveolata, its thorax dis- 

 tinctly trifoveolate. 



Spec. 105. Diahrotica coniigua. 



Proc. Zool. Soc, 1889, p. 92. 



Elongata, postice pauUo ampliata, convexa, flava, nitida, pectore, 

 scutello capiteque nigris, antennis ad basin et ad apicem. flavis ; 

 thorace leviter trifoveolato, disco interdum piceo tincio ; elytris 

 sat crebre punctatis, disco sulcis nonnullis longitudinalibus leviter 

 impresso, costa subhumerali fere ad apicem extensa; utroque linea 

 suturali ante apicem abbreviata, ad apicem pauUo ampliata, vitta 

 humerali, a basi fere ad apicem extensa maculaque discoidali pone 

 medium posita, nigris. 



Long. 3 lin. 



Hah. Brazil, Rio Janeiro. Coll. Baly and Fry. 



Head not longer than broad, triangular ; clypeus with a strongly 

 raised well-defined longitudinal ridge ; encarpee thickened, trans- 

 verse ; antennae filiform, nearly equal to the body in length, the 

 second joint short, the third nearly one-half longer than the second, 

 the fourth longer than the preceding two united ; the three lower 

 joints, the basal portion of the fourth, together with the three 

 upper ones, flavous, the ninth more or less stained with fuscous, 

 the rest black. Thorax one-half broader than long ; sides slightly 

 dilated and rounded anteriorly, rather deeply sinuate behind the 

 middle, the hinder angles slightly produced, acute ; disk im- 

 pressed with three shallow fovese. Elytra narrowly oblong, 

 slightly dilated posteriorly, their apices regularly rounded, convex, 

 finely but rather closely punctured ; disk of each elytron impressed 

 with four or five broad but shallow longitudinal sulcations ; sub- 

 humeral costa strongly raised and extending nearly to the apex of 

 the elytron. 



This species may be known from the preceding two by 

 the sulcations on the elytra. 



Spec. 106. Diahrotica holiviana. v. Harold. 

 Mittheil. d. Munch. Ent. Verr., 1877, p. 111. 

 Ancfuste ovata, postice ampliata, convexa, flava, nitida, pectore 

 capiteque nigris, antennis pallida piceis, apice piceo-flavo, scutello 



