456 MR. MARTIN JACOBY ON NEW SPECIES [ Nov. 28, 
strongly produced, the sides broadly sulcate, the surface im- 
punctate, whitish-testaceous; scutellum black; elytra widened 
towards the middle, rather broadly margined, especially so at 
their greatest width, not perceptibly punctured, with two broad, 
transverse, sometimes very obscure dark bands—one at the base, 
containing two black spots, of which one is placed on the shoulders, 
the other near the scutellum, the second band below the middle, 
thin which a single larger subtriangular black spot is placed ; 
der side and legs black ; metatarsus of the posterior legs rather 
shorter than the following two joints together ; claw-joint strongly 
swollen. 
Hab. Bolivia. 
The ground-colour of the elytra is but little lighter than the 
bands, except when these are well marked: in this case there 1s 
only the single spot visible near the scutellum—that is, in a 
specimen before me ; in the others the black spots are well marked, 
but the bands are obscure. 
OEDIONYCHIS ATROPUNCTATA, Sp. Nn. 
Testaceous, the breast more or less black; thorax impunctate, 
the sides broadly flattened ; elytra finely and closely punctured, 
each with five black spots (2.1.2). 
Length 5-6 millim. 
Head impunctate, with a deep triangular fovea between the 
eyes, the latter large, rather closely approached ; frontal elevations 
contiguous, distinct; antennz flavous, the 6th, /th, and 8th 
joints more or less piceous, 3rd and 4th joints equal; thorax 
with broadly flattened sides, the lateral margins rather evenly 
rounded, the posterior angles produced into a small tooth, the 
surface impunctate; elytra with rather broadly flattened margins, 
finely but distinctly and closely punctured ; a spot on the shoulders, 
one near the scutellum, a third at the middle, and two others 
placed transversely near the apex, black ; under side (the black 
breast excepted) and the legs testaceous; last abdominal segment 
of the male rather deeply sinuate at each side. 
Hab. Brazil. 
The number and position of the elytral spots distinguish this 
species, of which I received a specimen from Mr. C. Bruch, of the 
La Plata Museum; two others I subsequently obtained from 
M. Clavareau, who likewise got them from the same gentleman, 
without indication of a more exact locality. 
OEDIONYCHIS ARGENTINENSIS, sp. hh. 
Black; above testaceous, the apical joints of the antennz 
fuscous, the knees and the tarsi black; thorax impunctate; elytra 
finely punctured, somewhat flattened, each elytron with six small 
black spots (2.2.2) placed transversely, the last two pairs oblique. 
Length 43-5 millim. 
