168 NORTHERN ZOOLOGY. 



DESCRIPTION. 



This insect resembles M. sutor in so many particulars, that it is not without considerable hesi- 

 tation I describe it as distinct. It exhibits however some characters that seem to indicate more 

 than a casual variety, produced by difference of climate, &c. The antenna? of the male of M. 

 resutor are considerably shorter than those of the same sex of M. sutor ; the lubrum and rhina- 

 rium are shorter ; the former is rufo-piceous ; the first joint of the antenna;, the five or six of the 

 last joints are rufescent, as are the legs more or less, and the tooth that arms the intermediate tibia 

 is more prominent. The antenna; of the female are but little longer than the body, and not annu- 

 lated with cinereous. 



This species is intermediate between M. sutor and M. sartor. 



* * Elytra without wrinkles. 



(222) 2. * Monochamus confusor. Confused Monochamus. 



M. (confusor J nigro cinereoque nebulosus et variegatus : prothorace spinoso ; elytris testaceis punctatis piloso cinereis, nigra 



maculosis : scutello pallido : antennis rufescentibus basi nigris. 

 Confused Monochamus, clouded and variegated with black and cinereous : prothorax armed with spines : elytra testaceous, 



punctured, cinereous from hairs, spotted and dotted with black : scutellum pale ; antennae reddish, black at the 



base. 



Length of the body 1 inch and If line. 



Taken in Nova Scotia by Dr. Mac Culloch, in Canada by Dr. Bigsby, in 

 Massachusets by Mr. Drake. 



DESCRIPTION. 



Body linear, elongate, black, covered with white or cinereous decumbent hairs, but so as to let the 

 black appear in confused spots and reticulations. Labrum rather long, fringed anteriorly with fer- 

 ruginous hairs ; maxillary palpi long; rhinarium broad, rufous ; antenna; testaceous with the redness 

 obscured by decumbent cinereous hairs, but the scape and pedicel are black ; the antenna; of the 

 female are something longer than the body ; those of the male are twice its length : the spines of 

 the prothorax are stout, covered thickly with white hairs, and dotted posteriorly with black ; in the 

 disk is a central oblong impression : scutellum thickly covered with white decumbent hairs, with a 

 black longitudinal line : the ground colour of the elytra is testaceous which is more or less obscured 

 and clouded by white decumbent hairs, besides there are several black dots and oblong spots pro- 

 duced by erect hairs ; at the base of the elytra, especially on the projecting shoulders, are numerous 

 round elevated smooth little spaces, and their whole surface is covered with scattered minute 

 punctures. 



N.B. In the male the black spots and dots of the elytra are fainter, and sometimes nearly 

 obliterated. 



