~ 
of the Group Cerambycine. 25 
than any of the succeeding joints, the twelfth excepted ; this 
joint in the male is about half as long as the eleventh, in the 
female it is much shorter. 
This species has some resemblance to C. c/nereum, but can 
be easily distinguished from any of the allied species by the 
distinct twelfth joint to its antenne. 
Criodion Dejeant, sp. n. 
Criodion holosericeum, De}. Cat. 
Fulvo vel griseo sat dense tomentosum; prothorace subquadrato, 
basi apiceque constricto, supra leviter rugoso, lateraliter nonnihil 
inequali; elytris pube cinerea decumbente sat dense obtectis, 
apicibus late et recte truncatis, utrisque bispinosis; antennis 
( ¢ ) corpore paullo longioribus, subtus pilis fulvis dense fimbriatis. 
Long. 28-38, lat. 73-94 mm. 
Hab. Brazil. 
Head with rather strong mandibles; with the cheeks 
prominent and somewhat bluntly pointed, widely separated 
below, with a distinct transverse groove on the underside of 
the head between them. LHyes rather small, the lower lobes 
transverse, somewhat pointed in front. Prothorax subquad- 
rate, constricted at the base and apex, slightly rugose above, 
somewhat uneven at the sides, covered with a thick greyish 
or fulvous pubescence. Elytra with a rather dense ashy-grey 
decumbent pubescence; the apices broadly truncate, each 
with two spines, of which the outer is stronger than the 
sutural one. Body underneath and legs with a fulvous-grey 
pubescence. ‘Tibiw each armed with a spine at its outer distal 
termination ; intermediate femora unispinose at the apex ; apex 
of the posterior femora spinose behind, dentate or sharply 
angulate in front. Antenne (g) a little longer than the 
body, thickly fringed with tawny hairs underneath. 
The name holosertceum seems particularly inappropriate to 
the present species. I can see nothing in the three specimens 
before me that could have suggested silkiness ; their pubes- 
cence, in its present state at least, is entirely devoid of gloss. 
Criodion tuberculatum, sp. n. 
Criodion tuberculatum (Chevr., MS.), 
dé. Fuscum, griseo-pubescens ; prothorace subquadrato, dorso plagis 
nonnullis paullo elevatis, intervallis sulcatis separatis ; elytris 
pube brevi grisea dense obtectis, apicibus late recteque truncatis, 
