292 Myr. H. W. Bates’s Notes on Longicorn Coleoptera. 
Isomerida vittipennis. 
I. tineate (Bates) simillima, at differt antennarum articulo tertio 
quam quartus vix longiore. Cylindrica, nigro-fusca, subtiliter 
eriseo-pubescens, thorace vitta laterali, elytris linea elevata dorsali 
limboque laterali carneo-fulvis: capite inter antennas fortiter 
concavo ; thorace antice angustato, medio vix latiore, disco sub- 
tuberculato, nitido, sparsim punctato; elytris lineatim punctulatis, 
apice breviter truncatis; antennis articulis basi flavo-testaceis, 
articulis omnibus (secundo excepto) subequalibus, primo ad sex- 
tum infra penicillatis ; femoribus ventrisque apice flavo-testaceis. 
Long. 6-7 lin. 
Rio Janeiro, Novo Friburgo. 
In colour very similar to /. lineata 2, but longer and 
more cylindrical, and the third antennal joint very little longer 
than the fourth, with thick tufts of hair beneath all the joints 
from the first to the sixth. 
Isomerida longicornis. 
Cylindrica, fulvescens pube tenui flavo-cinerea vestita, pedibus rutis, 
tibiis extus tarsisque nigris: antennis ( ¢ ) corpore multo longi- 
oribus, robustis, fiiformibus, nigris, articulo tertio ceteris dis- 
tincte longiore, secundo ad septimum infrapaullo densius ciliatis ; 
capite haud retractili, fronte convexa ; thorace cylindrico, densius 
flavo-tomentoso ; elytris fundo rufescentibus, apice truncatis, an- 
gulo externo dentato, dorso lineatim punctulatis interstitiisnonnullis 
subelevatis, carina laterali paullo ultra medium obsoleta, carinula- 
que exteriore paullo longiore. 
Long. 63 lin. g. 
Bahia, Brazil. 
Of all the species hitherto described, this approaches Amphio- 
nycha nearest in the relative proportions and ciliation of the 
antennal joints. ‘The third joint, however, is not relatively so 
long asit isin Amphionycha; and the hairs beneath the joints 
are longer than in that genus, and decidedly denser on joints 
2-7. In facies and style of coloration and in the truncature of 
the elytra the species is quite conformable to the prevailing 
character of [somerida. 
Hemilophus infuscatus. 
Fere cylindricus, fusco-niger, capite et thorace (hoc disco postice 
fusco excepto) fulvescenti-rufis, elytrorum sutura (anguste et in- 
distincte) vittaque abbreviata laterali cinereis; antennis nigris, 
articulis nonnullis basi testaceis, femoribus fulvo-testaceis: an- 
tennis articulis secundo ad quartum subtus dense, ceeteribus spar- 
sim ciliatis; thorace sparsim grosse punctato, disco posteriore 
