336 Mr. J. 8. Baly’s Descriptions of 
antennis obscure rufo-fulvis, aneo-maculatis; thorace Jatitu- 
dine vix longiori, lateribus distincte tridentatis, margine apicali 
antrorsum modice producto; elytris fortiter et rude punctato- 
striatis ; tibiis anticis intus ante apicem spin4 valida armatis. 
Long. 3 lin. 
Hab. Brazil. 
Thorax scarcely longer than broad, sides moderately dilated, 
abruptly terminating before the apex, armed with three distinct 
teeth, anterior margin moderately produced ; upper surface trans- 
versely convex, slightly flattened at the base, closely and coarsely 
punctured. Elytra oblong-subovate, convex, scarcely flattened 
along the suture. 
Genus Corycra, mihi (olim). 
Since the publication of the above genus (Journ. Entom. ii. 221), 
I find that the word Corycia had been already used in Lepidoptera ; 
I therefore propose to substitute Corysthea as the generic name. 
Genus CorystTHEA. 
1. Corysthea ferox. 
Oblonga, convexa, obscure cuprea, nitida; antennis pallide fulvis, 
ad apicem infuscatis; thorace elytris latitudine fere aquali, 
subcrebre punctato; elytris punctato-striatis, singulatim infra 
basin transversim impressis; tibils posticis spina valida 
armatis ( ¢ ). 
Long. 3 lin. 
Hab. Cayenne. 
Face coarsely punctured, forehead impressed with an oblong 
fovea, vertex smooth, nearly impunctate. Thorax about equal in 
width to the elytra, sides slightly rounded and subparallel behind 
their middle, obliquely converging in front ; above convex, anterior 
angles strongly deflexed, surface distinctly and somewhat closely 
punctured. Elytra slightly attenuated towards their apex, the 
latter regularly rounded; above convex, slightly deflexed from 
before their middle to the apex; basilar space in each elytron 
bounded outwardly by a perpendicular, and below bya transverse 
depression, the latter, however, not reaching to the suture ; surface 
finely but distinctly punctate-striate, the striae becoming some- 
what confused towards their apex. Body beneath smooth and 
shining, the middle portion of the metasternum entirely occupied 
by a large transverse concave depression; apical segment of 
abdomen transversely sulcate. 
