460 ON NEW SPECIES OF PHYTOPHAGOUS COLEOPTERA. [NoV. 28, 



under side and legs testaceous ; the extreme basal margin of the 

 elytra black. 



Hah. Rio Janeiro. 



This species is principally distinguished by the narrow black 

 base of the elytra, which extends to the shoulders and limits the 

 fulvous band anteriorly. The colour of the antennas will further 

 assist in the recognition of the insect. 



Oedionychis prominula, sp. n. (Plate XY. fig. 1.) 



Ovately widened posteriorly, black, the apical two joints of the 

 antennas fulvous ; thorax impunctate, narrowed anteriorly ; elytra 

 finely punctured, pale fulvous, the apical third portion black. 



Length 6 millim. 



Head impunctate, with the exception of a single puncture near 

 the eyes, black ; the eyes are very large and prominent ; frontal ele- 

 vations strongly raised, rather broad ; antennae long and slender, 

 black, the apical two joints fulvous, third joint shorter than the 

 fourth ; thorax twice as broad as long, the lateral margins rounded, 

 the anterior angles thickened and produced into a small tooth, the 

 sides broadly sulcate, the sulcus connected at the base with another 

 shallow transverse groove extending across the disc and close to 

 the basal margin, the rest of the surface imj)unctate, black, very 

 shining ; scutellum black ; elytra widened towards the middle, 

 rathei' broadly margined, minutely and closely punctured, the 

 anterior two-thirds flavous, the rest black ; under side and legs 

 black ; metatarsus short, claw- joint sti-ongly swollen ; prosternum 

 deeply longitudinally sulcate. 



Hah. Peru. 



Distinguished by the black head, thorax, and under side, and the 

 short and posteriorly rather widened shape of the elytra. 



EXPLANATION OF THE PLATES. 



Plate XIV. 



Fig. 1. HomofJiceta angustolhieata, \ Fig. 7. Asphara zoniilata, p. 404. 



p. 591. i 8. A. tessellata, p. 416. 



2. II. peruviana, p. 399. 



3. II. argus, p. 591. 



4. Asphcera alhicincta, p. 409. 



5. A. nitidissima, p. 415. 



6. A. elegantula, p. 412. 



9. A. divisa, p. 418. 



10. A. tarsata, p. 402. 



11. Oedionychis duodecimnotata, 



p. 454. 



12. O. regina, p. 444. 



Plate XV. 



Fig. 1. Oedionycliis promintila, p. 460. Fig. 8. OediomjcMs bisbinotata, 



2. O. centromaculata, p. 431. 



3. O. exclamationis, p. 436. 



4. O. basinotata, p. 453. 



5. O. semifoveolata, p. 451. 



6. O. interrupto-vittata, p. 436. 



7. O. arcuatqfasciata, p. 431. 



p. 428. 

 9. O. flavomarginata, p. 451. 



10. O. ocellata, p. 434. 



11. O. illustris, p. 440. 



12. O. adjuncta, p. 449. 



