r 



THE CANADIAN ENTOMOLOGIST 157 



Blatch., but can be distinguished from it at once by the absence 

 of the humeral spot on the elytra. 



There is a slight variation in the colour of the antenna^ in the 

 two specimens at hand, the type having the apical angles of each 

 joint yellow, whereas the antennae are entirely unicolorous in the 

 paratype. This difference may prove to be sexual on the examina- 

 tion of a large series. % 



M. frosti should follow M. confnsa in a systematic arrangement. 

 Mordellistena masoni, sp. nov. 



Hind tibia with four strongly marked oblique ridges (and a 

 very small rudiment of a fifth) ; first joint of hind tarsus with 

 four, second with two ridges. 



Subcuneate; head and thorax dark reddish brown, covered 

 w^th fine golden yellow pubescence; antenna?, legs and underside 

 a little paler; elytra dark brown, with silky, golden pubescence 

 forming the following pattern, — an oblique band from humeri 

 nearly to. suture, an entire marginal line, widest at the middle, 

 where it forms an abbreviated band, a sutural streak, an apical 

 blotch connected with the marginal line, and several spots located 

 between the bands; anal style long and slender, black at tip. 

 Length 4 mm. 



Five specimeijis: two from Hemlock Falls, New Jersey, July 

 10; two from Eagle Rock, New Jersey, July 8; and one from West- 

 ville, New Jersey, July 21; all collected by Mr. Frank R. Mason. 



The type, from Hemlock Falls, New Jersey, is placed in the 

 writer's collection, paratypes in the collection of Mr. F. R. Mason, 

 to whom this species is dedicated. 



This species is nearest M. cinereo-fasciata Smith, differing from 

 it in having a narrower form, and no pale humerkl spot. It can 

 be readily recognized by the presence of light pubescent spots on 

 the dark area. In two or three specimens the middle band reaches 

 nearly to the suture, and the marginal line is partly broken, sug- 

 gesting that further variation may be found in a large series. 



This should follow M. cinereo-fasciata in the systematic ar- 

 rangement. 



Mordellistena nunenmacheri, sp. nov. 

 Hind tibia with three short, slightly oblique ridges; first joint 

 of hind tarsus with three, and second with two ridges. 



