420 MR. MARTIN JACOBY ON NEW SPECIES [Nov. 28, 



Hah. Paraguay. 



Of this species, very well distinguished by the almost rugose 

 entire upper surface, I know of only a single specimen. 



Oedionychis nigrosuturalis, sp. n. 



Black ; thorax finely and sparingly })unctured, testaceous ; 

 elj^tra strongly convex, closely and strongly punctured, testaceous, 

 the extreme sutural margins black ; abdomen fulvous. 



Length 9 millim. 



Head entirely black, with a few punctures near the eyes ; 

 clypeus strongly convex between the antennae, the latter short, 

 not extending to the middle of the elytra, black, the lower two 

 joints obscurely stained with piceous, third joint distinctly shorter 

 than the fourth ; thorax leather more than twice as broad as long, 

 the lateral margins strongly I'ounded, anterior angles not produced 

 but thickened, sides deeply but narrowly sulcate, the disc very 

 sparingly and finely punctured, testaceous ; scutellum black ; 

 elytra rather strongly convex below the middle (when viewed 

 sideways), with very narrow, thickened, reflexed margins, very 

 closely and comparatively strongly punctured, the sutui'e very 

 narrowly black ; breast and legs black ; abdomen fulvous. 



Hah. Brazil. 



I know of only a single, apparently female specimen of this 

 species, which is distinguished by the strongly punctured, convex 

 elytra and black suture, as well as by the colour of the head and 

 under side. 



Oedionychis picifrons, sp. n. (Clark Oatal.). 



Testaceous, the ^/ertex of the head and the antenuje pale 

 piceous ; thorax impunctate ; elytra very finely and closely 

 punctured ; posterior femora pale fulvous. 



Length G^- millim. 



Of somewhat flattened, oblong shape, the head impunctate, the 

 vertex very pale piceous, frontal elevations strongly raised, 

 trigonate ; clypeus triangularly carinate ; eyes large, widely 

 separated ; antennae extending to the middle of the elytra, pale 

 piceous, third and fourth joints equal ; thorax with the sides 

 rather strongly rounded and broadly flattened, the anterior 

 angles thickened but only slightly produced, the sui^face im- 

 pvinctate ; scutellum pale piceous ; elytra slightly widened 

 towards the middle, narrowly margined, extremely finely and 

 rather closely punctured, the shoulders very prominent and deeply 

 longitudinally sulcate Avithin, the depressions more strongly 

 punctured , pale testaceous ; under side and legs coloured like the 

 uppei' surface, the posterior femora pale fulvous or piceous. 



Hah. Brazil. 



Of more oblong shape, less broadly rounded than most of the 

 unicolorous species, very pale testaceous, with the exception of the 

 head, antennae, and the posteiior femoi'a ; the sides of the thorax 

 leather strongly rounded, the shoulders very prominent. 



