30 1 ^Ir. II. AV. Bates on Ceramhycidce 



2. Heterachthes corallinus, u. sp. 



Elongatus, postice attenuatus, rufus, nitidus, elytris 

 fascia lata basali alteraque simili apicali nigro-aeneis ; 

 antennis articulis a 3io*ad Stum et 6to basi paulo incrassatis ; 

 thorace paulo inajquali, polito, la3vi ; ely tris apice utrinque 

 in spinam prolongatis, supra punctis setiferis seriatim 

 ordinatis ; femoribus clavatis. 



Long. 4 lin. $ . 



A brilliantly-coloured and elegant species ; distinguish- 

 ed besides by the elytra not being truncate at the apex, 

 but tapering each into a spine. 



Hab. — River Tapajos. 



3. Heterachthes involutus, n. sp. 



Elongatus, minus cylindricus, castaneo-rufus, setosus, 

 nitidus -, capite dense jTunctato ; thorace minus elongate, 

 medio paulo dilatato, supra plagiatim punctato, linea 

 dorsali abbreviata elevata, vittis duabus nigro-fuscis ; 

 ely tris apice breviter truncatis, extus unidentatis, supra 

 leevibus (punctis setiferis exceptis) , usque ultra medium 

 fulvis, linea arcuata a margine sub humero incipiente et 

 ad marginem ultra medium terminante suturam vix 

 attingente et parte anteriore incrassata fusco-castanea, 

 triente apicali etiam fusco-castanea ; femoribus posticis 

 ( (^ ) apicem elytrorum hand attingentibus. 



Long. 4-6 4 lin. c? ? • 



Hah. — River Tapajos. 



4. Heterachthes longipilis, n. sp. 



Elongatus, longe griseo-pilosus, rufo-castaneus, niti- 

 dus ; thorace supra quinque-tuberculato, tenuiter plagia- 

 tim griseo-tomentoso, haud opaco ; elytris ante apicem 

 rotundatis, apice sinuato-truncatis bispinosis, spinis sub- 

 asqualibus, supra (puuctulis setiferis exceptis) Igevibus, 

 vitta sub-recta a basi prope ad medium, fascia valde 

 obliqua pone medium, apiceque flavo-testaceis ; femori- 

 bus utroque sexu apicem elytrorum longe haud attin- 

 gentibus, clavatis ; antennis longe pilosis, articulis a oio 

 ad 5tura ( (J ) paulo crassioribus. 



Long. i\-b\ lin. S ? • 



Hah. — River Tapajos. 



