304 Mr. H. W. Bates on Ceramhycidce 
2. Heterachthes corallinus, n. sp. 
Elongatus, postice attenuatus, rufus^ nitidus^ elytris 
fascia lata basali alteraque simili apicali nigro-seneis ; 
an tennis articulis a 3io ad 5tum et 6to basipaulo incrassatis ; 
thorace paulo ingeqnali, polito^ Isevi ; elytris apice utrinque 
in spinam prolongatis, supra punctis setiferis seriatim 
ordinatis ; femoribus clavatis. 
Long. 4 lin. S • 
A brilliantly-coloured and elegant species ; distinguish- 
ed besides by the elytra not being truncate at the apex, 
but tapering each into a spine. 
Hah . — Kiver Tapajos. 
3. Heterachthes involutus, n. sp. 
Elongatus, minus cylindricus, castaneo-rufus, setosus, 
nitidus ; capite dense punctate ; thorace minus elongate, 
medio paulo dilatato, supra plagiatim punctate, Tinea 
dorsali abbreviata elevata, vittis duabus nigro-fuscis ; 
elytris apice breviter truncatis, extus unidentatis, supra 
Isevibus (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 
(d') apicem elytrorum baud attingentibus. 
Long. 4-6^ lin . cT ? • 
Hah . — River Tapajos. 
4. Heterachthes longipilisj 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- 
sequalibus, supra (punctulis setiferis exceptis) Isevibus, 
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 3io 
ad 5 turn (d') paulo crassioribus. 
Long. 4|-5i lin. cT 9 • 
Hah . — River Tapajos. 
