452 MR. MARTIN JACOBY ON NEW SPECIES [ Nov. 28, 
Head with some punctures at the vertex, black, the eyes more 
or less margined with flavous within and with some distinct 
punctures ; antenne not extending to the middle of the elytra, 
black, third and fourth joints equal; thorax scarcely twice as 
broad as long, the lateral margins straight at the base, rounded in 
front, the anterior angles produced into a tooth, the sides broadly 
flattened, flavous, the middle of the dise in shape of an anteriorly 
narrowed broad band, black, impunctate; elytra rather broad, 
very closely and finely but distinctly punctured, black, the later. al 
margins narrowly flavous, this colour widened at the apex into a 
spot which does not quite mien’ to the suture; under sideand legs 
black or piceous. 
Hab. Espivito Santo, Brazil. 
Distinct in its coloration from any other species of the genus 
known to me; two specimens are before me. 
Llytra pale, with small black spots. 
OEDIONYCHIS BIPUNCTULATA, Sp. N. 
Testaceous above, the under side and legs darker; thorax 
impunctate, with broadly flattened sides; scutellum piceous; 
elytra very finely and closely punctured, each with a small black 
spot below the middle. 
Length 6 millim. 
Vertex of the head stained with piceous, with a central groove 
and bilobed in front, frontal tubercles short and broad; clypeus 
convex ; antennze with the lower three joints flavous, the follow- 
ing four black, the rest wanting ; thorax strongly transverse, of 
very even width, the sides straight at the base, rounded anteriorly, 
broadly flattened, anterior angles thickened, oblique but scarcely 
produced outwards, the disc impunctate, testaceous, obsoletely 
depressed in front of the scutellum, the latter triangular, nearly 
black; elytra strongly convex, nearly parallel, with a short row of 
deeper punctures within the shoulders, the rest very finely and 
closely punctured, below the middle a small black spot is placed, 
halfway between the lateral and sutural margins ; under side and 
femora fulvous; prosternum narrowly elongate, rather convex. 
Hab, Prov. Tucuman, Argentine Rep. (0. Bruch). 
In the markings of the elytra and general coloration this species 
resembles O. complanata Suff., from Ghuiba, but the latter is smaller, 
much more depressed in shape, and has impunctate elytra. 
OEDIONYCHIS TRILOBA, sp. 0. 
Hlongate, testaceous ; head and thorax impunctate, the latter 
with two trilobed black spots; elytra not perceptibly punctured, 
each elytron with three black spots, two at the base and one at the 
middle, the extreme sutural margins from the middle to the apex 
black. 
Length 6 millim. 
