474 Mr. H. W. Bates on the Longicorn Coleoptera 



14. Acanthoderes meleagris, n. sp. 



A. modice elongatus, depressus, postice attenuatus, tenultcr tomen- 

 tosus, griseo, fulvo nigroque Isete variegatus, capitis thoracisque 

 lateribus griseis : elytris trigonis, breviter truncatis, angulis ex- 

 ternis in spinas longas productis. Long. 5f-6j lin. S $ • 



Head sparingly punctured, varied with black and fulvous, 

 sides clear pale grey. Antennse rather short, black, the base of 

 each joint from the second grey. Thorax with the lateral tuber- 

 cles prominent and acute, the dorsal ones large, but only slightly 

 elevated, interstices with a few large punctures ; black varied with 

 fulvous, the sides clear pale grey. Elytra briefly truncate at the 

 apex, the outer angle armed with a long spine ; centro-basal ridges 

 prominent at the extreme base, each prolonged posteriorly as a 

 smooth flexuous carina to the apical spine ; sparingly punctured 

 near the base and on the sides ; pale grey, numerous small spots 

 and three larger transverse patches brownish black, varied also 

 with fulvous spots, chiefly near the scutellum, at one-third and 

 at two-thirds the length. Body beneath, and legs black, spotted 

 with light grey ; the third and fourth tarsal joints fulvous. The 

 opposing faces of the pro- and mesosterna are steeply inclined 

 and bituberculated. 



Taken at Ega and S. Paulo, on dead branches of trees. 



15. Acanthoderes Swederi, White. 



Acanthoderes Swederi, White, Cat. Long. Col. in Brit. Mus. ii. p. 360, pi. 0. 

 fig. 6. 



This is a common species near Para, on dead trees ; it is also 

 found on the Upper Amazons and at Cayenne. In most collec- 

 tions it stands as A. Daviesii of Swederus and Olivier; but the 

 descriptions of these authors, according to Mr. White, apply to 

 a distinct Columbian species. The excellent description and 

 figure quoted above are sufficient to make the insect perfectly 

 well known. I will only add that the opposing faces of the pro- 

 and mesosterna are steeply inclined and bituberculated, and that 

 the fore tarsi of the S are widely dilated and densely fringed. 



16. Acanthoderes chrysopus, n. sp. 



A, parum elongatus, valde depressus, postice paulo attenuatus, te- 

 nuiter tomentosus, rosaceo-fulvus maculis pallidioribus variegatus : 

 elytris subtrigonis, apice late truncatis, angulis externis modice 

 productis : tarsis aureo-fulvis. Long. 6 lin. S • 



Head silky fulvous. Antennae twice the length of the body, 

 ferruginous, silky, base of each joint (from the third) greyish. 

 Thorax with the lateral and dorsal tubercles equal in size and 

 shapCj large, conical, produced at their apices, rusty brown, 



