250 Mr. H. W. Bates on CeravihycuJce 



Sub-fam. Cerambycin^. 



Genus Hammaticheeus. 



Serville, Ann. Soc. Ent. Fr. 1834, p. 15 ; Lacord. 

 Gen. viii. 255. 



1. Hammaticherus Baius. 



Ceramhyx datus, Lin. Mus. Lud. Ulr. Reg. p. 69; 

 C. Batus, Lin. Syst. Nat. ii. 625. 



Omnino fusco-niger, tarsis palpisque solum fulvis ; 

 tliorace rugis profundis non interruptis circiter decern 

 transversis breviter cinereo-toinentosis; elytris pube 

 brevissima cinerea vix punctulatis, apice recto truncato, 

 utroque angulo longe spinoso ; eorpore subtus et pedi- 

 bus cinereo-tomentosis. Antennge S corpora triplo 

 longiores, $ eorpore paulo longiores ; utroque sexu arti- 

 culis 3-6 apice mucrone valido recurvo armatis. 



Long. 1 un. 4 lin. — 1 un. 7 lin. S ? • 



The Linncean name is sometimes applied to an allied 

 but distinct species, from South Brazil, which has chcs- 

 nut-coloured elytra, narrowly edged with black, and 

 golden pubescence on the thorax.* The excellent original 

 description of Linnteus, in which both thorax and elytra 

 are described as fuscous, leaves no doubt which form 

 he described ; and besides, at the early date when his 

 description was written, the Entomology of South Brazil 

 was almost unknown in Europe, although large numbers 

 of insects had been received from Surinam. 



Hah. — Obydos, Guiana side of Lower Amazons. 



The species was rare in the Amazons; found on the 

 boughs of felled trees. 



2. TTc^mmaticherus plicatus. 



CeramUx plicatus , Olivier, Entom. No. 67, p. 40, 



pi. xviii. p. 136. 



Corpus nigrum, cincreo-argonteo-sericeum; thorace 

 rugis profundis transversis paulo undulatis circiter de- 

 * This species may be thus defined : — 



Hamimatichcrus castomeus. 

 H. Bato maximo nffiuis, corjiorc piceo, subtus cinereo-tomeutoso, capite 

 mgro, thorace anreo-tomeutoso, rugis profundis circiter 10 transversis, 

 elytris castaneis, cinereo-pubesceutibus, vix nitidis, marginibus omnibus 

 uigro-fuscis, apice truncatis utrinque bispinosis. 

 Long. 1 un. 9 liu. ^ . 

 Hab. — Brazilia. 



