of the Group Cerambycine. 29 
Sphallenum spadiceum, sp. n. 
Criodion spadiceum, De}. 
Criodion cylindricum, De}. 
Fuscum, fulvo-griseo-tomentosum; prothorace subquadrato, supra ob- 
solete bituberculato, sparsim punctato; scutello dense tomentoso ; 
elytris fuscis, fulvo sparsissime setosis, setis decumbentibus ; 
apicibus truncatis, utrisyue bispinosis; femoribus apice obtuse 
angulatis, haud dentatis ; tibiis apice extus vix spinosis ; antennis 
fulvo-griseo-tomentosis et sparsim ciliatis, quam corpore sesqui- 
longioribus ( ¢ ), vel paullo brevioribus ( @ ). 
Long. 33-36, lat. 83-94 mm. 
Hab. Brazil. 
The femora in this species are slightly and obtusely angu- 
late on each side at the apex; the tibie have each a very 
short blunt spine at their outer termination. ‘he inter- 
mediate cotyloid cavities are closed in on the outside by an 
antero-lateral process or tubercle coming off from the meta- 
sternum. Owing to the absence of spines or teeth from the 
apical angles of the femora, and their great reduction oa the 
tibie, this species ought perhaps to be placed in Nesta. It 
may be looked upon as an intermediate form, whose charac- 
ters on the whole, it seems to me, bring it into closer relation 
with Sphallenum than with Xestia. 
Nestia denticornis (Chevr., MS.), sp. n. 
Xestia spinipennis, De}. Cat., nec Serville. 
Nigro-fusca, elytris castaneis, opacis ; capite (postice excepto) anten- 
nisque vix punctatis; prothorace grosse sparsimque punctato, 
dorso punctis in rugis parum transversis positis; scutello fulvo- 
pubescente ; elytris coriaceis, minutissime punctulatis; apicibus 
truncatis, utrisyue longe bispinosis; corpore subtus pedibusque 
sparsim fulvo-griseo-pilosis ; antennis (¢ ) quam corpore paullo 
longioribus, articulis a quarto ad decimum apice intus denticu- 
lato-productis, articulo undecimo medio angulato. 
Long. 25-35, lat. 6-9 mm. (¢ @ ). 
Hab. Brazil. 
This species appears to be somewhat allied to YX. brevi- 
pennis, Bates, from which it may be distinguished by the 
almost complete absence of large punctures from the front 
part of the head, including the antennal tubers. The antennx 
of the male are slightly longer than the body, those of the 
female much shorter; the third joint in the male is but little 
longer than the fourth ; in the female the third joint is about 
