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



strongly produced, the sides broadly sulcate, the siirface im- 

 punctate, whitish-testaceous ; scutellum black ; elytra widened 

 towards the middle, rather broadly margined, especially so at 

 their greatest width, not perceptibly punctured, with two broad, 

 transverse, sometimes very obscure dark bands — one at the base, 

 containing two black spots, of which one is placed on the shoulders, 

 the other near the scutellum, the second band below the middle, 

 thin which a single larger subtriangular black spot is placed ; 

 der side and legs black ; metatarsus of the posterior legs rather 

 shorter than the following two joints together ; claw- joint strongly 

 swollen. 



JIab. Bolivia. 



The gi'ound- colour of the elytra is but little lighter than the 

 bands, except when these are well marked : in this case there is 

 only the single spot visible near the scutellum — that is, in a 

 specimen before me ; in the others the black spots are well marked, 

 bvit the bands are obscure. 



Oebionychis atropunctata, sp. n. 



Testaceous, the breast more or less black ; thorax impunctate, 

 the sides broadly flattened ; elytra finely and closely punctured, 

 each with five black spots (2.1.2). 



Length 5-6 millim. 



Head impunctate, with a deep triangular fovea between the 

 eyes, the latter large, rather closely approached ; frontal elevations 

 contiguous, distinct ; antennae flavous, the 6th, 7th, and 8th 

 joints more or less piceous, 3rd and 4th joints equal; thorax 

 with broadly flattened sides, the lateral margins rather evenly 

 rounded, the posterior angles produced into a small tooth, the 

 surface impunctate ; elytra with rather broadly flattened mai-gins, 

 finely but distinctly and closely punctured ; a spot on the shovilders, 

 one near the scutellum, a third at the middle, and two others 

 placed transversely near the apex, black ; under side (the black 

 breast excepted) and the legs testaceous ; last abdominal segment 

 of the male rather deeply sinuate at each side. 



Hab. Brazil. 



The number and position of the elytral spots distinguish this 

 species, of which I received a specimen from Mr. C. Bruch, of the 

 La Plata Museum ; two others I subsequently obtained from 

 M. Clavareau, who likewise got them from the same gentleman, 

 without indication of a more exact locality. 



Oedionychis argentinensis, sp. n. 



Black ; above testaceous, the apical joints of the antennse 

 fuscous, the knees and the tarsi black ; thorax impunctate ; elytra 

 finely punctured, somewhat flattened, each elytron with six small 

 black spots (2.2.2) placed transversely, the last two pairs oblique. 



Length 4^-5 millim. 



