446 MR. MARTIN JACOBY ON NEW SPECIES [ Nov. 28, 
Length 63 millim. 
Head impunctate, the vertex black, the clypeus flavous, frontal 
elevations scarcely indicated, eyes widely separated, labrum and 
palpi flavous; antennz fulvous, the first jomt 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 minutely 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 narrow and perfectly regular in shape; below 
and the legs black. 
Hab. 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. Nh. 
Flavous, the base of the head, the antenne, and the breast and 
legs black; thorax impunctate; elytra finely and closely punctured, 
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 ; antenne scarcely extending to the middie 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. 
Hab. Colombia. 
Much larger than O. colombiana; the bands of the elytra blue, 
the spot near the scutellum absent, and the thorax of entirely 
different shape; the legs black. 
OEDIONYCHIS SELECTA, sp. 1. 
Pale fulvous; elytra extremely minutely and closely punctured, 
