58 PRIONIDiB. 



1. Ceroctenus gagatinus. B.M. 



Cerambyx (Lissonotus) gagatinus, Germ. Ins. Sp, Nov p. 504. 

 Ceroctenus uuicolor, Dej. Cat. p. 344. Chevr. Coll. 

 Hab. Brazil. 



2. Ceroctenus mixtus, n. s. B.M. 



C. fulvus, elytris margine postice et apice nigris ; fascia (ssepe 

 obsoleta), mediana nigra, marginem non attingente, et ad 

 suturatn graciliore ; antennis rufis, articulis 5 ultimis nigris ; 

 pedibus rufis. 



Fulvous ; elytra with the margin behind and the apex black. 

 In some specimens there is a black band about the middle, which 

 is widest towards the side, but does not reach the margin, and it 

 spreads out towards the shoulder ; it is thinnest towards the su- 

 ture. Antennae rufous, the last five joints black ; legs rufous. 



Length 7i to 9 hnes. 

 Hab. Brazil. 



3. Ceroctenus latifascia, n. s. B.M. 



C. nigerrimus, elytris fascia lata lutea postmediana, antennis 

 nigris, articuhs 3, 4, 5, 6 et basi, fidvis ; tibiis quatuor ante- 

 rioribus fulvis. 



Deep shining black; elytra mth three slight longitudinal costse, 

 and a wide yellow band behind the middle, the posterior and an- 

 terior margin somewhat waved. Antenna; black, the third, fourth, 

 fifth, sixth and base of seventh joints fulvous ;_ the tibiae of two 

 anterior pairs of leigs fulvous. 



Length 6 to 7 hnes. 

 Hab. Brazil (Ent. Club). 



97. CALLOCTENUS. 



Calloctenus, White, Proc. Zool. Soc. Lond. 1850. 



1. Calloctenus pulcher. B.M. 



Calloctenus pulcher, White,Proc. Zool. Soc. 1850, Annul. 13. f. 6. 

 Hab. Venezuela (Coll. Dyson). 



Calloctenus pulcher, var. nigripennis. 



In the Museum Collection there is a specimen of the female 

 considerably larger than the two other specimens ; the eljtra are 

 deep black, with greyish reflections, caused by the deeply punc- 

 tured spaces between the costas. 



Hab. Venezuela. 



