and Species of Gallerucide. . 473 
elytris fusco-violaceis aut pallide violaceo-piceis, valde cos- 
tatis, costis duabus interioribus minus distinctis. 
A. Elytrorum limbo laterali maculisque quaftuor, duabus prope 
medium, duabus ante apicem positis, flavis. 
B. Elytrorum limbo exteriori, fascia prope medium plus 
minusve distincta, maculis duabus subapicalibus, costisque 
nonnullis flavis. 
C. Corpore fulvo, elytris immaculatis. 
Mas.—Capite inter oculos lamina bilobaté armato, lobis ad 
apicem deorsum curvatis, facie inter Jaminam et antennarum 
insertiones modice concava, levi; epistomate bisexcavato, 
utrinque spina subacuta curvaté armato; antennarum arti- 
culis tertio quartoque incrassatis, compressis, conjunctim 
emarginatis, tribus basalibus flavis, nigro-maculatis. 
Foem.—Capite mutico; epistomate rude rugoso, medio longitu- 
dinaliter elevato; antennis simplicibus. 
Long. 4 lin. 
Hab. Amazons. 
In the Rev. H. Clark’s collection, some specimens of this 
species bear the name of “ heterocera, Illig.”” I have retained the 
name, although I cannot find any reference to Illiger’s description. 
As may be seen above, this insect varies greatly in coloration ; it 
is somewhat larger and decidedly more robust than any of the 
other species described in the present paper. 
3. Cerotoma congener. 
Pallide flavo-fusca, nitida, supra pallide picea; vertice rugoso, 
profunde unifoveolato; thorace distincte punctato, profunde 
transversim sulcato, sulco quadrisinuato; elytris fortiter 
punctatis, valde costatis, costis duabus interioribus fere 
obsoletis, interspatiis irregulariter transversim costulatis, 
limbo exteriori costisque nonnullis flavis. 
Mas.—Capite inter oculos lamina bilobatd instructo, °lobis 
acutis, ad apicem vix deflexis ; epistomate medio longitudi- 
naliter carinato, utrinque profunde excavato, ad utrumque 
Jatus spina curvata subacut4é armato; antennarum articulis 
tertio quartoque incrassatis et compressis, conjunctim emar- 
ginatis, quatuor basalibus flavis, primo ad apicem secundo 
tertioque dorso nigris, quinto ad octavum piceis, tribus 
sequentibus sordide albidis, ultimo apice nigro, 
Long. 3 lin. 
Hab. Amazons. 
VOL. II, THIRD SERIES, PART VI.—-FEB. 1866. MM 
