406 
Mr. H. W. Bates on Oeramhycidce 
antica impunctata^ scutello argenteo; elytris utrinqne 
medio linea longitudinali argentea ; antennis rufo-piceis^ 
articulis 1-4 pilis elongatis paucis^ 5to scopa magna 
nigra ; corpore subtus argenteo. 
Long. lin. 
Hah. — Ega. 
Bears tbe closest resemblance to 0. argyreurrij but dis- 
tinguished by its smaller size, and by the alDsence of 
hair-pencil from the tip of the third antennal joint. 
6. Cosmisoma scopuUcorne, 
Saperda scopulicornis, Kirby, Trans. Linn. Soc. xii. 442. 
Elongatum, postice attenuatum, fulvo - ferrugineum ; 
capite thoraceque densissime punctulatis, opacis; hoc 
elongate, hand constricto, lateribus paululum rotundato, 
utrinque vitta argentea ; elytris tomentosis, opacis, linea 
flavo-argentea a basi usque ad apicem ; antennis arti- 
culis 1-4 sparsissime pilosis, 5to apice scopa parva nigra, 
6-11 elongatis; corpore subtus argenteo, prothorace 
antice abdomineque glabris exceptis ; pedibus rufis. 
Long. 4J-5 lin. 
Hah . — Eiver Tapajos. 
A common and well-known Brazilian insect, found as 
far south as Eio Janeiro. G. ochracemn (Perty), con- 
founded with it by some authors, is a very distinct 
species. 
7. Cosmisoma puhherrimum, n. sp. 
Elongatum, postice attenuatum, nigrum ; thorace antice 
et postice valde constricto, medio lateribus haud tumidis, 
supra paulo insequali, creberrime punctulato, pubescente, 
linea dorsali Isevi; elytris linea alba a basi usque ad 
apicem; antennis articulis 2-4 infra ciliatis, 5to scopa 
magna nigra; femoribus clavis laste rufis. 
Long. 64 lin. 
Hah. — -St, Paulo, Upper Amazons, 
