386 REVISION OF TIIK TKNKIiKIo.NlD.r. OF AMERICA, 



regularly convex, with very fine sparsely placed punctures; epistoma and margins oi 

 thorax brownish; elytra with faint stria' of verj fine punctures; body beneath smooth, 

 shining, very sparsely punctured. 



Length . 1(> inch. 



North Carolina. Dr. ('has. Zimmerman. 



SCAPHIDEMA, Redt. 



Scaphidema, Redt., Fauna Au-.tr. ed. 1. p. 591. 

 Nelites, Lee, Agass. Lake Super., p. 232. 



This genus may be distinguished from Platydema by its truncate intercoxal process 

 and short epipleura;. The mesosternum is less prominent, loss deoph excavated than any 

 of the genera except Alphitophagus. The thorax is narrower at base than the elytra, the 

 sides not rounded except in front, and gradually wider from apex to base. 



S, seneolum, Lcc.. Nelites !"<■. cit.; Lac., Scapb. Genera V, p. 304. 



As compared with the European species, this one is more elongate, less rounded and 

 with a narrower thorax. 

 Length .14— .18 inch. 

 From the Lake Superior region. 



HYPOPHLCEUS, Fab. 

 flypophlceus, Fab. in Schneid. X. Mag. F.nt.. p. 24. 



Easily known by its sub-cylindrical form, thicker antennas and rather broader tibia?. 

 The epipleurae are short. 



Three species represent this genus in our fauna. 

 Thorax regularly convex. 



Thorax emarginate in front; angles distinct. parallelus. 



Thorax truncate in front; angles obtuse. thoracicus. 



Thorax depressed, with a broad longitudinal excavation. 



Thorax truncate in front; angles obtuse. cavus. 



II. parallelus, Mels., Proe. Acad. 3, 63. 

 Rufous, parallel. Thorax emarginate in front. 

 Occurs from Canada (Pettit) to Arizona. 



II. thoracicus, Mels, Proc. Acad. 3, 63. 



Head and thorax rufons. elytra dark brown or black. Thorax anteriorly truncate. 

 angles obtuse. 



Occurs from Canada to Georgia. 



