CERAMBYCID^E. 169 



(22.3) 3. * Monochamus marmorator. Marbled Monochamus. 



M. (marmorator) niger, fulvo nebulosus ; prothorace spinoso ; elytris nigro, cinereo, fulvoque marmoratis. 



Marbled Monochamus, black, clouded with tawny; prothorax spinose; elytra marbled with black, cinereous, and tawny. 



Length of the body 1 1 lines. 



A single specimen taken in Lat. 54°. 



DESCRIPTION. 



Body black, covered underneath, but so that the black appears in various places, with subcine- 

 reous, or somewhat tawny decumbent hairs. Head and prothorax covered in the same way but 

 with redder hairs: spines of the prothorax very robust, rather long, sharpish: scutellum covered 

 with a coat of cinereous hairs, divided by a black longitudinal line : elytra black, marbled variously 

 with cinereous and reddish tawny hairs ; the cinereous spots are dotted with black ; the surface of 

 the elytra when laid bare appears punctured, and at the base are several confluent smooth elevated 

 spaces ; suture and lateral margin testaceous ; apex acute. 



N. B. The antenna? in the specimen are broken off. 



Family CERAMBYCIDiE. Cerambycidans. 



LXXXVIII. Genus ACANTHOCINUS. Meg. 

 xix. * Subgenus Graphisurus. Kirb. 

 Anus of the female with a long exserted ovipositor. 



The type of this subgenus is Cerambyx fasciatus of De Geer. 8 It comes near to 

 Acanthocinus cedilis, the female of which has an exserted ovipositor, but not so long, 

 and the scape of the antennas is of a different shape ; so that they would, if con- 

 sidered as belonging to the same subgenus, form two divisions. 



(224) 1. * Acanthocinus (Graphisurus) pusillus. Dwarf A. Graphisurus. 



A. G. (pusillus J prothorace postice acute spinoso ,■ cinereo-pilosus nigro punctatus ; elytris fascia obliqua maculisque pluribus 



fuscis. 

 Dwarf A. Graphisurus, prothorax towards the base armed with an acute spine ; body with a coat of cinereous hairs dotted 

 with black ; elytra with an oblique brown band, and several spots of the same colour. 



Length of the body A\ lines. 



A single specimen taken in the Journey from New York to Cumberland-house. 



5 De Geer v, 1 14, t. xiv, /. 7. Z 



