126 



ENDOPHLCEIDJE. 



describe as an additional species (under the name of erosus) what I 

 now believe cannot be regarded as more than an aberrant, and ex- 

 tremely exaggerated, state of the canariensis, in which the prothorax 

 is greatly and suddenly scooped out, on either side, behind. Indeed, 

 after a careful inspection of additional material, I am persuaded that 

 the form alluded to is merely a phasis which can be connected by 

 intermediate gradations with the ordinary type ; and I have conse- 

 quently suppressed it as a species. 



359. Tarphius setosus. 

 Tarphius setosus, Wott., Append, huj. op. 1 7. 

 Habitat Canarienses (Gfom., Hierro), in lauretis parum vulgaris. 



As will be seen by a reference to the Appendix, this Tarphius was 

 detected by the Messrs. Crotch during their late researches at the 

 Canaries. It appears to be common in the damp sylvan districts of 

 Gomera, and possibly also in Hierro though, on account of the dry- 

 ness of the season, and the lateness of their sojourn, in that island, 

 they obtained but a single example from the latter. It is more 

 nearly related to the T. canariensis than to any of the other species ; 

 but I have stated in my diagnostic observations what the characters 

 are which seem to separate it entirely from that insect. 



360. Tarphius humerosus. 

 Tarphius humerosus, Woll., Append, hiy. op. 19. 

 Habitat Canarienses (6rom.), in lauretis editioribus rarissimus. 



Likewise a Canarian species, and peculiar to Gomera where, how- 

 ever, it appears to be extremely rare, the Messrs. Crotch, by whom 

 it was detected, having obtained but three examples during their 

 late researches in that island. 



361. Tarphius affinis. 



Tarphius affinis, Woll., Append, huj. op. 19. 



Habitat Canarienses (6rom.), in sylvaticis haud infrequens. 



Like the T. humerosus (to which it a good deal allied) this Tar- 

 phius is apparently peculiar to Gomera, of the Canarian Group, 

 where it was found by the Messrs. Crotch (more commonly than that 

 species, but by no means in abundance), during the summer of 1864, 

 in the laurel-woods of a high elevation. 



