246 (April, 
PERICOMPSUS SIMPLEX, n. sp.—P. hirsuto forma similis, differt 
corpore nudo, thorace antice multo minus rotundato-dilatato, minus con- 
vexo. Rufo-testaceus, antennis pedibusque pallidis, immaculatis ; elytris 
elongato-ovatis, striis sea impressis grossius punctatis, interstitiis elevatis, 
flavo-testaceis, apud medium macula magna communt rufescenti prope latera 
nigrescenti et antice dilatata, apice levibus. Long. 1% lin. 
Similar to P. picticornis in form and colour, differmg in the im- 
maculate antenne, and also in the striation of the elytra. In P. pieti- 
cornis the strie are sharp and fine, though slightly impressed and finely 
punctulated ; in P. simplew they are distinctly broader and less im- 
pressed, and the punctures considerably larger, without, however, 
reaching the size they present in P. grossepunctatus. The thorax in 
both species is distinctly less dilated and convex anteriorly than in P. 
hirsutus, but approximates more nearly to this species than to the 
typical sp. P. ephippiatus, Say. 
St. Catharme or Rio Grande, S. Brazil; from M. Meyer-Diir’s 
collection. 
PERICOMPSUS IMMACULATUS, n. sp.—Minor, rufo-testaceus, nudus, an- 
tennis pedibusque pallidioribus ; thorace quam in P. emphippiato multo 
breviort, valde transverso, sub-quadrato, postice modice angustato, bast sulco 
sub-marginali, angulis rectis ; elytris strives quingue punctorum vx impressrs, 
2—5 antice posticeque abbreviatis. Long. } lin. 
Distinguished by its small size, short and broad thorax, and the 
obliteration of the 5th (or outermost) stria. 
Ega, Amazons; 3 examples. 
Prericompsus INcisus, n. sp.—P. clitellari (Erichs.) proxime affinis, 
sed paulo minor, elytris haud nigro-plagiatis. Rufo-testaceus, elytrorum 
sutura, pectore abdomineque fusco-nigris ; thorace transversim quadrato, 
postice paulo angustato, elytris striis sex acute incisis, vix punctulatis, strvis 
1--2 ad apicem extensis, 3—4 ante apicem conjunctis, 5 striolam recurvam 
attingenti, sutwra et disco postice infuscatis, apice flavo-testacers ; prosterno 
rufo-testaceo, meso- necnon metasterno abdomineque fusco-nigris. Long. 1 lin. 
Differs from P. clitellaris, Erichs., by the absence of the clear black © 
patch across the elytra, and by the red under-surface of the pro-thorax, | 
It appears closely allied also to P. concinnus, Laferté, of which, however, | 
the elytra are described as dark, with four pale spots. 
Santarem, Amazons. In my own collection and that, of Mr. Grut. 
PERICOMPSUS METALLICUS, n. sp.—Wigro-wneus, pedibus flavo-testaceis, 
antennis fuscis, basi et palpis rufo-prcers ; thorace transverso-quadrato, postice 
modice angustato ; elytris strus sex grosse punctatis, 2—6 longe ante apicem | 
terminates. Long. 1 lin, 
