1871.: 131 
antennis, palpis pedibusque rufo-testaceis, elytris margine apicali angusta 
indeterminata maculaque ovata suturali prope apicem rufo-testaceis ; 
thorace quadrato, postice paululum angustato, angulis posticis rectis, basi 
utrinque punctato et fovea minus elongata, lata, profunda ; elytris punc- 
tato-striatis ; subtus, meso- et metasternis abdominisque basi punctatis. 
Long. 35—A4 lin. g. 
In colours of apex of the elytra this species resembles L. picticauda, 
but it is distinguished by its larger size, deeper black colour, the very 
much narrower pale apical border, and especially by the coarsely punc- 
tured episterna of its meso- and metathorax. It is evidently closely 
allied to Z. posticus, Brullé ; in which, however, the anterior femora 
are partly black. 
Ega, Upper Amazons. 
LoxanDRUS QUADRINOTATUS, n. sp.—Oblonqus, piceo-fuscus (elytris 
wridescentibus) ; antennis, palpis, capite antice, thorace pedibusque rufo- 
testaceis, elytris macula quadrata humerali, interstitia 5—8, alteraque 
minort prope apicem, interstitia 2—4 occupanti, flavo-testaceis ; thorace 
quadrato, lateribus sub-regulariter rotundatis, angulis posticis sub-rectis, 
apice obtusis, supra basi sparsim punctato, utrinque fovea elongata 
sulciformi ; elytris fortiter striatis ; corpore subtus iridescenti, sternis 
(precipue metasterno) punctatis. Long. 35 lin. B 3. 
Obydos, Lower Amazons. 
LoOXANDRUS TETRASTIGMA, n. sp.— Oblongo-ovatus, nigro-piceus, 
nitidissimus (elytris lete iridescentibus) ; antennis, palpis, capite antice 
pedibusque flavo-testaceis, elytris macula rotundata humerali, interstitia 
6—8, alteraque parva prope apicem interstitia 83—4 vel 8—5 occupanti, 
fulvo-testaceis ; thorace quadrato, lateribus rotundatis, angulis posticis 
sub-rectis, supra bast parce punctatis, utrinque fovea ad fundum sulcata ; 
elytris fortiter striatis, striarum fundis punctatis; corpore subtus wi- 
descenti, sternis (precipue metasterno) punctatis. 
Long. 23—8 lin. 8 9. 
Closely allied to the preceding, differing only in the darker colour, 
smaller size of the elytral spots and distinctly punctulated striz ; besides 
being a smaller insect. 
Ega, Upper Amazons. 
LoxaNDRUS VITTATUS, n. sp.—Oblongus, fusco-piceus, iridescens, 
labro, palpis, antennarum basi pedibusque rufo-testaceis, elytris vitta, 
interstitium 6° occupanti, postice abbreviata, maculisque binis posticis 
