458 MR. MARTIN JACOBY ON NEW SPECIES [ Nov. 28, 
OEDIONYCHIS TORQUATA, Sp. 0. 
Testaceous, the terminal joints of the antennze and the breast 
piceous; head strongly punctured; thorax impunctate ; elytra 
distinctly punctured, with three small black spots, two at the base 
and one at the middle of each elytron. 
Length 6 millim. 
Rather flattened above, the head very strongly and deeply 
punctured; frontal elevations transverse, strongly raised, nearly 
contiguous; carina short and rather broad; antennee testaceous, 
the terminal joints more or less piceous, third and fourth joints 
equal, apical joints shorter; thorax twice as broad as long, the 
sides rounded and broadly flattened, anterior angles not produced 
outwards, the surface impunctate, obsoletely transversely grooved 
at each side near the base; elytra slightly widened towards the 
middle, very closely and distinctly punctured at the base, rather 
more finely so below the middle, the spots placed as in O. hume- 
ralis Fab., one at the shoulders, one near the scutellum, and the 
third of oblique shape at the middle; the breast nearly black; 
legs testaceous, as well as the abdomen. 
Hab. Brazil. 
I must separate this species from O. hwmeralis Fab., O. 4-punctata 
Schauf., and several others with nearly similar elytral markings, on 
account of the strongly punctured head and the black breast; the 
eyes are moderately large and widely separated. 
OEDIONYCHIS DECORA, Sp. Nn. 
Narrow and subdepressed, testaceous ; antennz black, the basal 
and the terminal three joints pale; thorax impunctate, the anterior 
and posterior margins fuscous at the middle; elytra nearly im- 
punctate, each with two basal elongate spots, a transverse band at 
the middle, and another spot near the apex, fuscous. 
Length 5-6 millim. 
Head impunctate, testaceous or pale fuscous; eyes very large; 
frontal tubercles trigonate, nearly joined; antenne scarcely 
extending to the middle of the elytra, black, the basal joint 
testaceous, the terminal three joints obscure flavous, third and 
following joints equal; thorax flattened, rather more than twice as 
broad as long, the sides rounded, broadly flattened, the base (in 
one specimen) with an obsolete transverse groove, the dise im- 
punctate, testaceous, the anterior and posterior margins fuscous at 
the middle, anterior angles acute but scarcely produced ; elytra 
not perceptibly punctured, testaceous, with four fuscous or piceous 
marks—an elongate one on the humeral callus, a rounded spot near 
the scutellum, a short transverse band at the middle, and another 
larger rounded spot near the apex; under side and legs testaceous. 
Hab. Amazons; also Peru. 
IT may add that the suture of the elytra is sometimes also 
narrowly marked with fuscous, and that the central band has 
a short and narrow stripe attached to its outer end, pointing 
downwards. P, 
