26 Mr. C. J. Gahan on Longicorn Coleoptera 
utrisque bispinosis ; antennis corpore paullo longioribus, subtus 
pilis fulvis dense fimbriatis. 
Long. 23 et 38, lat, 73-93 mm. 
Hab. Peru, Sarayacu ; and (?) Cayenne. 
Head with strong mandibles and prominent cheeks. 
Disk of the prothorax with about seven slightly raised plage 
or flattened tubercles, which are separated from one another 
by narrow sulcate intervals ; the medio-basal plaga is some- 
what rhomboidal in form, with its longer diameter in the middle 
line; the two in front of its anterior angle are small and 
scarcely separated from each other; the two on either side of 
the median plaga are broad. ‘The sides of the prothorax are 
somewhat uneven. ‘The elytra have a dense greyish pubes- 
cence. The intermediate femora are unispinose, the posterior 
bispinose at the distal extremity. Tie tibiz are each spined 
at their outer termination. ‘lhe antenna, a little longer than 
the body, are fringed with fulvous hairs underneath. 
This species, in the sculpture of its prothorax and in its 
general appearance, somewhat resembles C. rhinoceros, Bates. 
But the latter species is characterized by the remarkable 
horn-like processes which come off from tie anterior side of 
the mandibles. in the larger of the two specimens which I 
have included in the present species there isa slight elevation 
or ridge on the anterior side of the mandibles. 
Criodion testaceum, sp. Nn. 
Criodion testaceum, De}. Cat. 
Rufo-testaceum, elytris fulvis; capite prothoraceque fulvo-griseo 
dense pubescentibus; prothorace subquadrato, fortiter sparsimque 
punctato; elytris haud nitidis, pilis minutis sparsim munitis, 
apicibus truncatis, utrisque bispinosis ; corpore subtus sparsim 
pubescente; femoribus intermediis apice unidentatis, posticis 
bidentatis ; tibiis apice extus spinosis; antennis quam corpore 
paullo longioribus, fulvo sparsim pilosis. 
(92?) Long. 32, lat. 9 mm. 
Hab. Brazil. 
From its general appearance, and especially from the rather 
close approximation of the antennal tubercles, this species 
might be considered to belong to the genus Sphallenum; but 
as its intermediate cotyloid cavities are not closed externally, 
the species could not be placed in Sphallenum without breaking 
through the limitation which Mr. Bates has imposed upon 
the latter genus. 
