446 MR. MARTIN JACOBY ON NEW SPECIES [Nov. 28, 



Length 6| millim. 



Head impunctate, the vertex black, the clypeus flavous, frontal 

 elevations scarcely indicated, eyes widely separated, labrum and 

 palpi flavous ; antennse fulvous, the first joint piceous above, 

 third joint shorter than the fourth ; thorax strongly transverse, 

 the sides strongly rounded, the anterior angles very prominent 

 and pointed, the lateral sulci narrow, somewhat interrupted 

 anteriorly, not well separated from the discoidal portion, the 

 surface impunctate, flavous, with a transverse short black band 

 at the middle of the anterior margin ; elytra with narrowly 

 reflexed margins, extremely minvitely punctured when seen 

 under a strong lens, flavous, with two broad transverse black 

 bands, one at the base, the other below the middle, the latter 

 band shorter than the basal one (in a longitudinal sense), neither 

 band extends to the lateral margins and the flavous space 

 separating them is nari-ow and perfectly regular in shape ; below 

 and the legs black. 



Hah. Bolivia. 



The thoracic spot or band placed at the middle of the anterior 

 margin and the regular shape and black colour of the elytral 

 bands distinguish this species, of which I know only a single 

 specimen. 



Oedionychts weisei, sp. n. 



Flavous, the base of the head, the antennse, and the breast and 

 legs black; thorax impunctate; elytra finely and closely pvuictured, 

 the basal margin and a transverse narrow band below the middle 

 dark metallic blue. 



Length 8 millim. 



Head with a few fine punctures, black, the clypeus flavous ; eyes 

 large, the diameter of each as wide as the intermediate space ; 

 frontal elevations oblique, strongly raised, bounded by a deep 

 fovea behind ; antennae scarcely extending to the middle of the 

 elytra, black, the third and fourth joints equal ; thorax twice as 

 broad as long, somewhat narrowed anteriorly, the lateral margins 

 strongly rounded, the anterior angles distinctly produced into 

 a tooth, the sides deeply sulcate, the surface impunctate, except 

 when seen under a very strong lens, when some minute punctures 

 are visible, flavous ; scutellum black ; elytra convex, elongate, but 

 slightly widened at the middle, very finely and closely punctured, 

 the extreme base as far as the shoulders and a narrow band below 

 the middle, not quite extending to the lateral margins, violaceous 

 blue ; below and the legs black, abdomen fulvous. 



Hob. Colombia. 



Much larger than 0. colomhiana ; the bands of the elytra blue, 

 the spot near the scutellum absent, and the thorax of entirely 

 difierent shape ; the legs black. 



Oedionychis selecta, sp. n. 



Pale fulvous ; elytra extremely minutely and closely punctured, 



