172 MR. MARTIX JACOBY OX XEW SPECIES [Mar. 4, 



before the middle, the angles acute, the basal sulcus very deep, 

 straight, bounded at the sides by a perpendicular groove, the 

 surface entirely impunctate ; elytra much wider at the base than 

 the thorax, the basal portion slightly raised, the disc very closely 

 and distinctly punctured, the punctures arranged in indistinct 

 rows, much finer towards the apex, a well-marked costa extends 

 from the shoulders nearly to the apex and is preceded by a shorter 

 one which does not extend iipwards to the base, the interstices 

 between these costse more ii-regularly and more strongly punctured 

 than the rest of the surface, elytral epipleurae bi-oad, with a row 

 of punctures ; below and the legs metallic blue, impunctate, the 

 last segment of the abdomen v/ith a longitudinal groove which 

 widens at the apex, the sides of the segment slightly raised. 



JIab. Venezuela. 



The single specimen before me is probably a male, although 

 the anterior tarsi are not particularly dilated. The species differs 

 from its allies in the sculpture and costse of the elytra, in connection 

 with its coloration. 



DiPHAULACA FLAVIPES, Sp. n. 



Below piceous, above greenish-jeneous, the basal joints of the 

 antennae and the legs entirely flavous ; thorax impunctate, with 

 deep transverse sulcus; elytra with the basal portion convex, 

 scai'cely pei'ceptibly punctured except near the base. 



Length 4 millim. 



Head impunctate, seneous, the fi-ontal elevations small, ovate ; 

 antennae slender, blackish, the lower four joints flavous, the third 

 and fourth of equal length ; thorax one- half broader than long, 

 the sides straight at the base, rounded anterioi'ly, the angles 

 acute, the disc deeply transversely silicate, the sulcus sinuate, 

 bounded at the sides by a perpendicular groove, entirely im- 

 punctate ; elytra widened towards the middle, the apex of each 

 rounded, the base distinctly swollen, the shoulders prominent, 

 the surface extremely finely punctured at the base, the punctures 

 scarcely arranged in rows and very closely placed, nearly obsolete 

 below the middle, the epipleurse very broad, concave; below 

 obscure piceous, the legs entirely flavous. 



Ilab. Colombia {Pehlke). Museum Stettin and my collection. 

 This small species may be at once known by the entirely seneous 

 upper surface and the flavous legs. The specimen before me seems 

 to be a female. 



DiPHAULACA PALLIPES, Sp. n. 



Below black, above greenish-seneous, the basal joints of the 

 antennas and the legs (the posterior femora excepted) flavous; 

 thorax impunctate, the basal sulcus deep ; elytra finely punctate- 

 striate, the punctures indistinct near the apex. 



Length 2 millim. 



Head impunctate, the frontal tubercles narrowly oblique, the 

 carina acute, the lower portion of the face and the labrum black, 



