Coleopterological Notices, V. 601 



The type of this remarkable species is apparently unique. The 

 prosternum is rather broadly and deeply sulcate. In my recently 

 published table of the genus it may be placed immediately after 

 corpulenta. 



EUMONONYCBA n. gen. 



Body subrhomboidal, convex. Beak short, stout, feebly arcuate, 

 slightly flattened toward apex, the epistomal lobe prominent and 

 the mandibles small, stout, broadly decussate and deeply notched ; 

 basal transverse groove deep, abrupt and impunctate. Antennae in- 

 serted at the middle of the sides, the scrobes obliquely descending ; 

 scape not quite attaining the eye ; fuuicle short, the basal joint 

 stout and as long as the next three, the second quadrate, two to 

 seven subequal in length, increasing gradually in width, the club 

 oval, moderate in thickness, as long as the five preceding joints, 

 finely pubescent, with the basal joint large. Prothorax constricted. 

 Scutellum small. Elytral striae normal. Prosternum nearly flat, 

 feebly emarginate at apex, with a deep transverse post-apical fovea. 

 Anterior coxse large, prominent, narrowly separated. Legs some- 

 what short and stout ; femora long and parallel, unarmed ; tibiae 

 short, very feebly enlarged and everted toward apex, not carinate 

 externally ; tarsi short, stout, the third joint small but wider than 

 the second and deeply bilobed Tarsal claws long, single. 



The present genus is the third now known in the Barini having 

 the tarsal claws single ; they differ greatly however among them- 

 selves in all other features. The type above defined approaches 

 Eisonyx more closely than any other, but differs in its normal ely- 

 tral striation, non-carinate tibiae, and very greatly in general facies 

 and sculpture. 



£• Opaca. n. sp.— Black, the legs, especially the intermediate and poste- 

 rior, rufo-piceous ; integuments very dull throughout and minutely granulato- 

 reticulate, the pronotum more shining than the elytra ; vestiture sparse and 

 uneven, consisting on the elytra of long, very fine, closely recumbent whitish 

 hairs, slightly coarser and more distinct in certain feebly defined spots poste- 

 riorly, and quite coarse before the humeral callus ; on the pronotum widely 

 scattered but more noticeable narrowly at the sides toward base ; on the under 

 surface very inconspicuous but more distinct at the sides of the abdomen be- 

 hind ; legs and tarsi much more conspicuously setose. Head and beak finely 

 but strongly punctate, the latter densely so throughout, subequal in length 

 to the prothorax, thick and slightly compressed. Prothorax small, subconical, 

 Annals N. Y. Acad. Sci., VII, Dec. 1893.— 39 



