prionidjE. 41 



Prionus cvlindricus, Fabr. S. El. ii. 261. 



Olw. Col. ix.t. l.f. 6. 

 Cerambyx cylindroides, GraeZ. Syst. Nat. iv. 1818. 

 Prionus sulcatus, Pal. Beauv. Ins. rec. p. 226. pi. 35. f. 4. 

 Orthosoma cylindricmn, Serv. Ann. Soc. Ent. Fr. i. 156. 

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

 Hab. N. America. 



2. Orthosoma badium. B.M. 



Orthosoma badium, Dej. Cat. p. 342. 

 Serv. Ann. Soc. Ent. Fr. i. 156. 

 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. Crinosoma 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- 

 drical, or at least very slightly compressed, with 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 pallescens, n. s. PL II. f. 5. B.M. 



M. pallide-flavescens, antennarum articulo singulo et femorum 

 apicibus fusco-nigris, elytris costis duabus longitudinalibus. 



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

 the apex of each joint of the antennas and the tip of the femora 

 brown. Head with a slight impressed line down the middle, de- 

 licately punctured. Thorax with scattered inconspicuous hairs, 



