78 (September, 
Eucaerus suncatvs, n. sp.—inus nitidus, capite nigro, epistomate 
labroque rufo-testaceis ; palpis pedibusque flavo-testaceis ; antennarum 
articulis 1\—6 rufescentibus, 8—9 albis (cetera desunt) ; thorace lato, 
rufo-testaceo, lateribus explanato-marginatis, postice modice angustato, 
angulis posticis via productis, latis, apice obtusis, lobo postico angusto, ro- 
tundato ; elytris rufo-fuscis, sutura marginibusque pallidis, profunde 
equaliter s!riatis. Long. 2 lin. 
Banks of the Tapajos. One example. 
EvemeRvus sTRIATUS, n. sp.—Minus nitidus ; capite piceo, parte an- 
tica, palpis pedibusque flavo-testaceis ; antennarwm articulis 1—6 rufes- 
centibus, 7—11 testaceo-albis ; thorace late cordato, lateribus anguste ex- 
planatis, postice sinuatim angustato, angulis posticis via productis, obtusis, 
lobo postico lato, minus producto ; elytris rufo-fuscis, sutura margini- 
busque pallidis, equaliter simpliciter striatis. Long. 1h lin. 3 exempl. 
Banks of the Tapajos, at Santarem. Differs from 2. sulcatus in 
its smaller size and the much less sulciform strie of the elytra. In 
both the thorax is transverse, with flattened-out lateral margins, the 
flattened portion broadest at the hind angles. 
BucHRUS SERICEUS, n. sp.— Niger, elytris enescentibus, iridiscenti- 
sericeis, palpis pedibusque flavo-testaceis ; antennarum articulis 1—6 
fuscis, 7—11 albis ; thorace lato, postice sinuatim angustato, lateribus 
precipue prope angulos posticos explanato-marginatis, lobo postico lato ; 
elytris fortiter striatis. Long. 1% lin. 1 ewempl. 
Ega. 
EucmRUS GEMINATUS, n. sp.— Migro-piceus ; labro, palpis pedi- 
busque flavo-testacers, antennarum articulis 1—2 rufo-testaceis, 3—6 fuscis, 
7—l1 albis ; thorace capiti latitudine equali, nitido, cordato, postice for- 
titer angustato, angulis posticis abrupte productis, parvis, dentiformibus ; 
angulis anticis defleais, supra antice convexo, lobo postico lato, vie pro- 
ducto ; elytris fortiter striatis, margine angusto, maculis rotundatis utrinque 
duabus, alteraque elongata postica suturali, fulvis, notatis. 
Long. 13 lin. 1 exempl. 
The twin spots of the elytra are situated side by side on the dise 
near the base, one occupying interstices 3-5, and the other, 7-8; possibly 
in other examples they may be united and form a short fascia. 
Banks of the Tapajos, at Santarem. 
