1905.] OF PHYTOPHAGOUS COLEOPTERA. 459 
Llytra otherwise marked. 
OEDIONYCHIS BICOLORATA, Sp. 0. 
Testaceous ; the head, antenne, breast, and the legs black ; 
thorax impunctate, the anterior angles produced ; elytra extremely 
minutely punctured, the anterior two-thirds metallic greenish- 
reneous, the rest testaceous. 
Length 7 millim. 
Head with some fine punctures at the vertex, the frontal 
elevations pyriform ; clypeus flavous, strongly transversely raised ; 
antennee black, the basal jomt elongate, strongly widened ante- 
riorly, third joint shorter than the fourth ; thorax rather strongly 
narrowed anteriorly, the sides nearly straight, the anterior angles 
much produced and pointed, the sides broadly flattened, the surface 
impunctate, testaceous; scutellum black; elytra very feebly de- 
pressed below the base, very minutely and closely punctured, the 
anterior portion to below the middle metallic greenish, this colour 
not quite extending to the lateral margins and divided by a straight 
line from the apical testaceous portion ; the breast and legs black ; 
the abdomen testaceous. 
Hab. Baiios, Ecuador. 
This is a peculiarly marked species, of which I know only a 
single specimen. The thorax has the sides less rounded than 
is usually the case and the angles much produced; these differ- 
ences distinguish the species from O. bolivianus Jac., previously 
described, which must find its place in Asphera, as the metatarsus 
of the hind legs is decidedly elongate; otherwise the coloration of 
the elytra nearly resembles that of the present species, except that 
the metallic colour of the latter occupies only the anterior half of 
the elytra. 
OEDIONYCHIS NIGROBASALIS, Sp. 0. 
Testaceous, the intermediate joints of the antenne black; thorax 
impunctate ; elytra very finely punctured, a transverse band at the 
base and another one near the apex fulvous, the extreme basal 
margin black. 
Length 7-8 millim. 
Head impunctate, testaceous or pale fulvous; eyes very large, 
rather closely approached ; antennz with the four basal and the 
two apical joints testaceous, the others black, third and fourth 
joints equal ; thorax with very broadly flattened sides, the lateral 
margins rounded, the anterior angles produced outwards into 
a small tooth, the surface entirely impunctate, testaceous; scu- 
tellum blackish at the base; elytra testaceous, with a transverse 
fulvous band at the base; this band is concave at its posterior 
edge and extends generally downwards in a narrow stripe along 
the suture, where it is connected with another broad transverse 
band near the apex, neither of them extends to the lateral margins, 
and the posterior band is sometimes reduced to a round spot ; 
