424 MR. MARTIN JACOBY ON NEW SPECIES [NoV. 28, 



OeDIONYCHIS PALLESCENS, Sp. 11. 



Pale flavous, the antennae (the basal joints excepted), the knees, 

 and the anterior and intermediate tibiae and tarsi black ; thorax 

 impnnctate ; elytra exceedingly minutely punctured. 



Length 4-4^ millim. 



Head impunctate, deeply grooved between the eyes, the latter 

 very large but well separated, frontal elevations transverse, 

 strongly raised, carina linear, palpi flavous ; antennpe extending 

 to the middle of the elytra, black, the lower three joints flavous, 

 third joint very slightly shorter than the fourth ; thorax one half 

 broader than long, slightly narrowed anteriorly, the sides narrowly 

 flattened, the lateral margins rounded, anterior angles produced 

 into a small tooth, the disc impunctate ; elytra slightly widened 

 towards the middle, narrowly margined, the base not depressed, 

 the surface very minutely and closely punctured ; the knees, the 

 anterior and intermediate tibite. and tarsi black (but not always) ; 

 the rest of the legs and the under side flavous, the posterior femora 

 sometimes Avitli a piceous spot near the apex. 



Hah. Peru. 



Principally distinguished by the colour of the legs and its 

 small size. 



Obdionychis inconspicua, sp. n. 



Testaceous, the intermediate joints of the antennse black ; eyes 

 closely approached ; thorax impunctate ; elytra finely and closely 

 punctured. 



Length 5 millim. 



Head impunctate, deeply grooved between the eyes, the latter 

 very large, each broader than the space dividing them ; clypeus 

 short and thick ; antennfe not extending to the middle of the 

 elytra, black, the lower three and the apical two joints testaceous, 

 third and fourth joints equal ; thoiax twice as broad as long, the 

 sides rounded, broadly flattened, the anterior angles slightly 

 produced but blunt, the surface impunctate ; elytra rather convex, 

 nearly parallel, extremely minutely punctured ; below and the 

 legs testaceous, the breast more or less pale piceous ; first joint of 

 the posterior tarsi as long as the following two joints together, 

 claws strongly swollen. 



Hab. Amazons. 



Larger than 0. 2)cdlesce7is ; the antennas of dififerent colour, the 

 eyes larger and more closely approached, the metatarsus of the 

 posterior legs rather longer than usual, but not so pronounced as 

 in Asphcmra, and the thorax typical of the genus. There are four 

 specimens before me. 



OeDIONYCHIS HERBACEA, sp. 11. 



Black, head finely punctured ; thorax testaceous, the sides 

 strongly rounded, finely wrinkled ; elytra convex, testaceous, 

 strongly and closely punctured, the extreme basal and sutural 

 margins black ; abdomen testaceous. 



