1902.] OF AMERICAN COLEOrTERA. 173 



the vertex greenish-feneous ; the antennaj rather long and slender, 

 flavoas, the terminal joints fuscous, the third and fourth joints 

 equal, scax'cely longer but much thinner than the second one ; 

 thorax twice as broad as long, the sides straight, the anterior 

 angles oblique, forming a distinct tooth before the middle, posterior 

 margin rather broadly produced at the middle, the basal sulcus 

 deej) and sinuate, bounded at the sides by deep perpendicular 

 grooves, the surface rather convex, impunctate, greenish-seneous ; 

 elytra with the base slightly raised, distinctly punctured in closely 

 approached i-ows which become obsolete near the apex ; legs 

 flavous, the posterior femora blackish. 



Hah. St. Oatharina, Brazil. 



Of only half the size of D. Jiavipes, the basal margin of the 

 thorax not straight as in that species, but slightly produced at 

 the middle, the punctuation of the elyti-a, more distinctly arranged 

 in rows, and the posterior femora black, not flavous. 



DiPHAULACA FRUHSTORFERI, Sp. n. 



Greenish-seneous, basal joints of the antennae and the base of 

 the femora (more or less) testaceous ; head deeply foveolate ; thorax 

 obsoletely punctured, metallic green or seneous, the basal sulcation 

 deep ; elytra with the base raised, rather strongly and closely 

 punctate-striate, metallic green or brassy. 



Length 3g millim. 



Head impunctate, deeply foveolate between the eyes, the latter 

 large and prominent, frontal elevations obsolete, carina acute ; 

 antennae rather long and slender, piceous, the lower four joints 

 and the apical one testaceous, third and fourth joints equal, 

 terminal joints equally long, not thickened ; thorax transversely 

 subquadrate, the sides straight, the anterior angles slightly 

 thickened and oblique, the basal sulcus deep, bounded at the sides 

 by equally deep perpendicular grooves, the surface convex, nearly 

 impunctate, brassy green; elytra with the base distinctly raised, 

 the basal margin preceded by a deep groove which extends in 

 front of the shoulders, the surface strongly and closely punctate- 

 striate anteriorly, the punctm^es very much finer towards the 

 apex, below dark seneous; legs robust, piceous, the femora more or 

 less testaceous at the base, posterior tibias slightly curved and 

 dilated at the apex. 



Hah. St. Oatharina, Brazil {Fruhstorfer). 



Principally distinguished from other species of the genus by 

 the deep frontal fovea, the strong and close punctuation of the 

 elytra, and the colour of the legs. 



DiPHAULACA HAROLDI, Sp. n. 



Below blackish, above greenish-seneous, the basal three joints 

 of the antennae flavous; thorax transverse, finely punctured; 

 elytra with the basal portion convex, regularly pTinctate-striate, 

 the strife remotely placed. 



Length 2| millim. 



