PRIONIDiE. 41 



Piionus cvlimli'icus, Fahr. S. El. ii. 261. 



Oliv'.Col. iv. t. l.f. 6. 

 Cerambyx cylinclroides, Gmel. Syst. Nat. iv. 1818. 

 Prionus siilcatus, Pal. Beaiw. Ins. rec. p. 226. pi. 35. f. 4. 

 Orthosoraa cylindricum, Serv. Ann. Soc. Ent. Fr. i. 156. 

 Orthosoma imicolor, Laporte, An. Art. ii. 402. 

 Hab. N. America. 



2. Orthosoma radium. B.M. 



Orthosoma badium, Dej. Cat. p. 342. 

 Serv. Ann. Soc. Ent. Fr. i. 166. 

 Hab. Brazil. 



71. STICTOSOMUS, 



Stictosomus, Serv. Ann. Soc. Ent. Fr. i. 153. 

 Orthosoma, p., Laporte, Anim. Art. ii. 402. 



1. Stictosomus semicostatus. 



Stictosomus semicostatus, Dup. Serv. Ann. Soc. Ent. Fr. i. 154. 

 Hab. Cayenne. 



72. CRINOSOMA. 

 Crinosoma, Blanch. Chevr. Coll, 



1. Crixo.soma maculatum. B.M. 



Crinosoma maculatum, Chevr. Coll. 

 Hab. S. Africa. 



73. MALACOMACRUS, n. g. 



Head cylindrical. Eyes in front of the antennae very large. 

 Palpi large, terminal joint obliquely truncated. Antennae cylin- 

 ch-ical, or at least very slightly compressed, Tvith a row of hairs on 

 the inside ; fourth and subsequent joints grooved on the upper 

 surface. Thorax rather wider than long, the sides rounded and 

 smooth, the posterior edge bisinuated. Elytra very long, narrow. 

 Legs compressed ; tarsi elongated. 



1. MaLACOMACRUS PALLESCEXS, n. s. PI. II. f. 5. B.M. 



M. pallide-flavescens, antennarum articulo singulo et femorum 



apicibus fiisco-nigris, elytris costis duabus longitucUnalibus. 



Of a uniform pale yellowish hue, the suture edged with brown, 

 the apex of each joint of the antenna and the rip of the femora 

 brown. Head with a shght impressed line down the midale, de- 

 hcately punctured. Thorax with scattered inconspicuous hairs, 



