396 Mr. H. W. Bates on Cerambycidce 



ascondente, secunda (primae proxima) recta transversa, 

 tertia longe distanto versus apicem ; pedibus piceo-rufis 

 vel nigris, femoribus ut in N. rufo (Oliv.) gradatim crasse 

 clavatis. 



Long. 3^-7 lin, ^ <? . 



Hah. — Santarem, Tapajos, Ega. 



Abundant occasionally on wooden fences of gardens. 

 The yellow belts of the elytra are all of nearly equal width, 

 and form moderately wide fasciae, and not fine lines as 

 in N. rufiis and other allied species. 



Genus Mecometopus. 



Thomson, Classif. des Ceramb. p. 222. 



Lacordaire unites this genus with Neodytiis, but it 

 seems to me to form a distinct and very natural group, 

 distinguished from Neochjtus by the very much shorter 

 and less robust hind legs, which are in due proportion 

 to the anterior and middle pair. The muzzle is in almost 

 all the species longer and narrower than in Neoclytus. 

 All the known species are from tropical America. 



1. Mecometopus Batesii. 



Clytus Batesii, White, Cat. Longic. Brit. Mus. p. 257. 



Robustus, niger, corpore subtus thoraceque tomento 

 ochreo variegatis, elytris laste croceo-flavis, macula elon- 

 gata humerali, altera obliqua rhomboidea laterali pone 

 medium, et apice nigris; thorace magno, elytris multo 

 latiore, subgloboso, dorso linea lata elevata trans versim 

 rugosa. 



Long. 6 lin. 



Hah. — Banks of the Irurd, Santarem. On dead trees. 



2. Mecometopus festivus. 

 Clytus festivus, Fab. Syst. El. ii. 348. 



Cylindricus, ater ; thorace breviter oblongo-rotundato, 

 elytris haud latiore, vage late cinereo fasciato ; scutello, 

 elytrorum vitta abbreviata obliqua prope basin, macula 



