1905. | OF PHYTOPHAGOUS COLEOPTERA. 447 
a broad transverse band at the base and another below the middle, 
connected at the suture, metallic green. 
Length 9 millim. 
Head fulvous, with a few punctures near the eyes, the clypeus 
with a strongly raised, central carina, eyes large; antenne long 
and slender, third joint shorter than the fourth; thorax more 
than twice as broad as long, the sides strongly rounded, broadly 
flattened; the disc very convex, very minutely punctured when 
seen under a strong lens, fulvous; scutellum broad, fulvous ; 
elytra convex, scarcely widened at the middle, with a shallow 
transverse depression below the base, extremely finely punctured, 
the punctures of different sizes, with two very broad, transverse, 
metallic green bands, the first at the base not extending to the 
margins but nearly to the middle, the second band immediately 
below the latter, of nearly the same width and not extending to 
the apex; these bands are therefore separated by a narrow trans- 
verse and straight band of the ground-colour which does not quite 
extend to the suture and rounded at its inner termination ; 
under side and legs fulvous. 
Hab. Amazons. 
Of more parallel shape than O. enea, and distinguished from 
that and other similarly marked species by the bright metallic-green 
bands of the elytra, separated at the middle by a straight narrow 
fulvous band which does not extend quite to the suture; in 
O. bipartita, which has similarly coloured metallic bands, these are 
divided before and below the middle. 
OEDIONYCHIS CARDINALIS, sp. n. (Clark, MS.). 
Piceous, head and thorax flavous, the latter narrowed in front ; 
elytra microscopically punctured, flavous, a broad transverse band 
at the base and another of more rounded shape below the middle, 
violaceous blue. 
Length 10 millim. 
The principal differences which separate this species from 
many similarly coloured forms are to be found in the large 
general size, anteriorly narrowed thorax, and the shape of the 
elytral bands; the eyes are well separated, and the head is 
sparingly and finely punctured; the frontal elevations and the 
carina are proportionately broad ; the antenne have very slender 
and elongate joints, the lower three are fulvous, the rest black 
(in the British Museum specimen, named by Clark, the antennz 
are entirely fulvous). The thorax is less transverse than in many 
other species, distinctly narrowed anteriorly, with strongly rounded 
sides, the anterior angles are blunt above, but have a short pro- 
jection below the margin in front of the eyes; the lateral sulci 
are rather broad and shallow; the scutellum is flavous; the 
punctuation of the elytra can only be seen with a very strong lens ; 
of the blue elytral bands, the first extends nearly to the middle 
and has its posterior margin straight or nearly so, in the second 
band the anterior and posterior margins are rounded, so that the 
