of the Group Cerainbyciiuo. 29 



Sphallenum spadiceum, sp. n. 



Cnodion spadicpum, Dfj. 

 Criodion cylindricum. Dej. 



Fiiscum, fulvo-griseo-tomentosum; prothorace subqiiadrato, supraob- 

 solete bitiiberculato, sparsira punctato ; scutello dense tomentoso ; 

 elytris fustis, fulvo sparsissim(3 sctosis, setis decurabentibus ; 

 apicibus truncatis, utrisque bispinosis ; feraoribus apice obtuse 

 ang:nlatis, baud denfatis ; tibiis apico extus vixspinosis ; antennis 

 fulvo-griseo-tomentosis et sparsiiu ciliatis, quam corpora sesqui- 

 longioribus ( J ), vel paullo brcvioribus ( ? ). 



Long." 33-36, lat. SJ-O] mm. 



Hah. Brazil. 



The femora in this species are sliglitly and obtusely augu- 

 late on each side at the apex ; the tibiae have each a very 

 short blunt spine at their outer termination. The 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 feuiora, and their great reduction o.i the 

 tibias, this species onglit perhaps to be place;! in Xentia. 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 SphaJlenum than with Xestia. 



Xestia denticornis (Chevr., MS.), sp. n. 

 Xestia spinipeiinis, Dej. Cat., nee Serville. 



Nigro-fusca, elytris castaneis, opacis ; capite (postice excepto) anten- 

 nisque vix punctatis ; protborace grosse sparsimque punctato, 

 dorso punctis in rugis parum transversis positis ; scutello fulvo- 

 pubesceute ; elytris eoriaccis, minutissime puuctulatis ; apicibus 

 truncatis, utrisque longc bispinosis ; corpore subtus pedibusque 

 sparsim fulvo-griseo-pilosis ; antennis ( c? ) quam corpore paullo 

 longioribus, articulis a quarto ad decimum apice intus denticu- 

 lato-productis, articulo undeeimo medio angulato. 



Long, i.5-35, lat. 6-9 mm. ( J $ ). 



Hah. Brazil. 



This species appears to be somewhat allied to X. 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 antennse 

 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 



