216 THE CANADIAN ENTOMOLOGIST. 



interstices elevated : cubit acutely tridentate : podex transversely irregu- 

 larly acuducted. [This is a description of the female of Osmoderma scabra 

 Dej., a species quite common in Ontario.] 



191. Trichius foveatus Kirby. — Length of body 11^ lines. Taken 

 in Nova Scotia by Capt. Hall. 



Near the preceding species, but perfectly distinct. Body nearly naked, 

 somewhat glossy, of a dark pitch-colour. Nose and front between the 

 eyes with a very deep and large impression, the bed of which is acuducted 

 in circles with a minute puncture in the centre of each ; the rest of the 

 head is connuently punctured ; above the bed of the antennae the front 

 rises into a rather lofty levigated prominence : the prothorax is shaped 

 like that of G rugosus, but is rather less obtusangular, the channel is 

 deeper, with its sides more elevated, and there -are one or two slight 

 impressions between it and the margin ; the punctures on the disk are 

 rather more numerous : the elytra are paler than the rest of the body and 

 a little bronzed, the wrinkles of the surface are more vermiform than in the 

 species just named, without any punctures, and the^ appearance of furrows 

 is less distinct : the podex is distinctly punctured and scarcely acuducted ; 

 and the cubit is sinuated rather than dentated, the three prominences 

 being extremely obtuse. [A description of the male of Osmoderma scabra 

 Dej.] 



[141.] 192. Platycerus piceus Web. — Length of body 6 lines. A 

 single specimen taken in the journey from New York to Cumberland- 

 house. 



[142.] Body dark piceous, rather glossy, thickly punctured. Nose 

 very retuse, or rather with a large sinus : mandibles shorter than the head, 

 acute, armed on their inner side with a stout tooth with the segment of a 

 circle taken out of it ; antennae pale chestnut : prothorax with the lateral 

 margin obtusangular, subcrenate, and reflexed ; disk longitudinally im- 

 punctured, and obsoletely channelled : scutellum channelled, impunctured : 

 elytra furrowed : cubit serrulate and denticulate, two sharp teeth longer 

 than the rest at the apex ; tarsi chestnut. This is the smallest species of 

 the stag-beetle tribe. [Placed, with a mark of interrogation, as a synonym 

 of Platycerus dcpressus Lee. This specific name is preoccupied by Mc- 

 Leay's Ceruchus piceus. P. Depresses is taken in Canada.] 



193. Passalus interruptus Linn. — Length of body 1^ — 1 h inch. 

 Many taken in the journey from New York to Cumberland-house. 



Body black or piceous, underneath sometimes rufo-piceous, impunc- 

 tured, glossy. Head with a crooked horn between the eyes pointing 



