438 ME. MARTIN JACOBY ON NEW SPECIES [Nov. 28, 



Oedionychis informis (MS. Clark), sp. n. 



Testaceous, the head, breast, and abdomen (partly) black ; 

 thorax impunctate, scutellum black ; elytra minutely punctured 

 each with three transverse black bands ; legs testaceous, the apex 

 of the posterior femora and the base of the tibise black. 



Length 6 millim. 



Head narrow, dark piceous, impunctate, eyes large ; two basal 

 joints of the antennfe testaceous, the others wanting ; thorax with 

 the lateral margins strongly rounded, the sides veiy broadly 

 flattened, anterior angles not produced into a tooth, the disc im- 

 punctate, testaceous ; scutellum black ; elyti'a with rather broadly 

 reflexed lateral margins, extremely finely and closely punctured, 

 testaceous, with three transverse black short bands abbreviated 

 at each end, the basal one in shape of a large subquadrate patch 

 placed on the shoulders, the second one, the narrowest, placed at 

 the middle, and the third near the apex ; under side black, the 

 last three abdominal segments and the legs testaceous, the extreme 

 apex of the posterior femora and the base of their tibiae black. 



Hah. Rio de Janeiro. 



OSDIONYCHIS GRAYI, Sp. n. 



Dark fulvous below ; clypeus and thorax flavous, base of the 

 head black, anterior angles of thorax mucronate, the latter im- 

 punctate ; elytra very finely and closely punctured, flavous, a 

 broad transverse band at the base and another below the middle, 

 not extending to the margins, dark violaceous, posterior edge of 

 the second band rounded. 



Length Gg millim. 



Head impunctate, the vei'tex black, frontal tubercles narrowly 

 transverse, flavous, as well as the clypeus, labrum, and the palpi ; 

 antennae short, not extending to the middle of the elytra, dark 

 fulvous, the basal joint thick, subcylindrical, widened at the apex, 

 the third joint twice as long as the second but shorter than the 

 foui'th joint, the following joints about as long as the third ; 

 thorax narrowed anteriorly, about twice and a half broader than 

 long, the sides nearly straight, the lateral sulci not deeply 

 separated from the disc, anterior angles muci'onate, the surface 

 convex, impunctate, flavous ; scutellum blackish ; elytra rounded 

 and widened towards the middle, naiTOwly margined, the shoulders 

 with a short, moderately deep impression within, the suiface finely 

 but distinctly and very closely punctured, the dark bands very 

 wide, the dividing spaces narrow, the lateral margins likewise 

 narrowly flavous, the posterior band rounded at its apical 

 margin, leaving the suture for a little way upwards and the apex 

 of the elytra somewhat more broadly flavous ; under side and 

 legs fulvous. 



Hah. Amazons {Bates). 



The single specimen contained in my collection was obtained by 

 Bates, but bears ng special localit}^. The species differs fi'om 



