1905. | OF PHYfOPHAGOUS COLEOPTERA. 453 
Head impunctate, frontal elevations broad, well marked, carina 
very convex and prominent, eyes very large; thorax twice as 
broad as long, the sides broadly flattened, the lateral margins 
rather rounded near the base, gradually narrowed anteriorly, 
anterior angles produced into a small tooth, the surface impunctate, 
with a transverse depression at the sides near the base, testaceous, 
the sides with a trilobate black spot, the middle lobe pointed 
upwards; elytra nearly parallel, with a feeble depression below the 
base, impunctate, a round black spot on the shoulders, another 
near the scutellum, and a third spot of transverse shape at the 
middle, as well as the sutural margins from below the base to the 
apex, black; under side and legs testaceous. 
Hab. Peru. 
I know only a single specimen of this species and am not aware 
therefore if the markings of the elytra are subject to variation, 
which is probably the case. The species has the frontal carina, 
however, much more strongly raised than most of its allies, the 
elytral spots are comparatively large and deep black; this and 
the similarly coloured suture will assist in the recognition of the 
species. 
OEDIONYCHIS BASINOTATA, sp.n. (Plate XV. fig. 4.) 
Piceous, the base of the head and a transverse band at the 
thorax bluish-black; elytra strongly and closely punctured, with 
four black spots, placed obliquely at the base in a semicrescent. 
Length 6 millim. 
Head strongly punctured near the eyes, fulvous, the vertex 
bluish-black, frontal elevations robust, oblique, carina short and 
broad ; eyes large, each as broad as the dividing space; antenne 
scarcely extending to the middle of the elytra, black, the lower 
three joints more or less flavous below, third joint thinner but as 
long as the fourth; thorax twice as broad as long, the lateral 
margins straight at the base, rounded anteriorly, the anterior 
angles produced into a strong tooth, the sides deeply suleate and 
flattened, surface with a few minute punctures, the entire disc 
bluish-black, the margins fulvous; scutellum black; elytra not 
depressed below the base and scarcely so within the shoulders, 
closely and strongly punctured, each with two bluish-black spots 
at the base placed transversely, the outer one transverse, the 
inner of more elongate shape; below and the legs nearly black ; 
metasternum raised anteriorly. 
Hab, Paraguay. 
This beetle differs in the markings of the elytra from any other 
described species. 
OEDIONYCHIS MACULATISSIMA, Sp. Nn. 
Ovate, convex, dark fulvous below, vertex of head piceous; 
antenne and thorax fulvous, the latter with two transverse, black 
spots; elytra rather strongly punctured, pale fulvous, with ten 
spots each (3.3.2.2). 
