230 cerambyciDjE. 



three longitudinal rows of punctures bearing each a bristle ; apex 

 with a pale mucro. Under side pale ferruginous with the sides 

 darker ; femora with the club dark brown on the under side. 

 Hab. Amazon (Tapayos) (Coll. W. B. Bates). 



30. Ibidion simplex, n. s. B.M. 



I. capite thoraceque ferrugineo-fuscis laevigatis ; antennis palli- 

 dis, articulo basali fusco ; elytris pallide-luteis, singulis ad 

 suturam lineis tribus punctorum ad apicem obsoletis, lineola 

 basali, sub-bis-curvata fusca, ad dimidium elj-tri tendente. 

 Long. lin. 4. 



Head ferruginous, the space above the mouth somewhat raised 

 and smooth ; antennae pale yellow, the first two segments brown. 

 Thorax highly polished, smooth, deep ferruginous-brown ; elytra 

 pale yellow, mucronated at the tip, a narrow brown line extends 

 from the shoulder to the middle of each elytron, and forms two 

 wide curves ; there is a band of punctures which get obsolete 

 long before reaching the tip ; underside deep brown ; legs pale, 

 femora of hind legs brown at the tip, which is armed with two 

 short spines ; tibine and tarsi of fore legs brownish-black at the 

 tip ; other tarsi pale ferruginous. 

 Hab. Amazon (Tapayos and Santarem) (Coll. W. B. Bates). 



31. Ibidion Batesianum, n. s. PI. VI. f. 6. B.M. 



I. nigro-fuscum, elytris macula marginal] anti-mediana pallida, 

 intus integra, apice late tecto pube cinerea fusco subpunctata, 

 lineola alba obliqua antice marginata, antennis pallidis, arti- 

 culo tertio crassissimo, fusiformi et fusco tincto, quarto brevi 

 pallido incrassato, quinto et sequentibus graeilibus. 

 Long. lin. 3. 



Head short in front, antenna? with the first two joints ferru- 

 ginous, third thickest of all, spindle-shaped, pale at the base and 

 on the under side, tinged with brown above ; fourth joint pale 

 yellow, short, much thickened, the following joints slender, yel- 

 lowish ; third, fourth, fifth and sixth joints with longish pale 

 hairs on the hinder edge ; elytra somewhat flattened at the base, 

 shining blackish-brown with a triangular spot on each side be- 

 fore the middle, the base of the triangle on the margin ; the 

 aprx widely tipped with short greyish hairs, with a few punctures 

 arranged in lines, from each of which proceeds a bristly hair ; 

 these punctures in some lights seem as if surrounded with brown, 

 which gives the grey apex a mottled look ; apex of elytra^ mu- 

 cronated. Legs pale, femora tinged with brown, tibia: brownish, 

 with scattered longish hairs. Under side of body ferruginous. 

 Hab. Amazon (Santarem, Tapayos) (Coll. W. B. Bates). 



