Coleopterological Notices, V. 511 



Aiitennse slender and subfiliform, the outer five or six joints elongate, flat- 

 tened, loosely connected and more or less asymmetrically dilated ; scutellum 

 minute or wanting ; mes-epimera transverse, variable in size, sometimes 

 obliterated ; met-episternal suture single ; tarsi longer and more slender ; 

 elytral punctures not seriate Scaphisomint 



The genera may be thus epitomized: — 



Tribe Scaphidiini. 



Suture between the metasternum and mes-episterna single; basal angles of 

 the prothorax not posteriorly prolonged ; eyes entire. 

 Basal joint of the hind tarsi short ; posterior tibiae not spinose externally ; 

 eighth antennal joint smaller than the seventh ; prosternum well devel- 

 oped before the coxae, not carinate ScapIlilllU 



Basal joint elongate ; posterior tibiae sparsely and finely spinose externally ; 

 eighth antennal joint not smaller than the seventh ; prosternum very 



short before the coxae, the head more inflexed Cyparilim. 



Suture strongly double ; posterior angles acute and somewhat produced ; eyes 

 emarginate ; prosternum carinate and deeply biexcavate before the coxae. 



Scaphidiuin 



Tribe Scaphisomini. 



Third antennal joint elongate and cylindrical. 



Body oval ; sutural stria of the elytra attaining the base ; mes-epimera well 

 developed ; scutellum generally wanting, when present very transverse, 



parabolic Baeocera 



Body compressed ; sutural stria not attaining the base ; mes-epimera not 



visible ; scutellum wanting ToxidilllU 



Third antennal joint very short, claviform or triangular, always strongly 

 narrowed to the base ; scutellum minute but never obsolete, equilaterally 

 triangular ; sutural stria attaining the base ; mes-epimera variable in size. 



Scapliisoiua 



All of these genera, except Cyparium and Toxidium, occur also 

 in Europe, and the European Scaphoschema appears to be unrepre- 

 sented in America. 



SCAPHIUME Kirby. 



The appreciable interval between the eyes and point of antennal 

 insertion and the very short basal joint of the posterior tarsi, are 

 characters which force us to place this genus at one of the extremes 

 of the family. Its elongate form, small eyes and more regularly 

 striate elytra, are also exceptional features. 



We have a single subarctic species : — 



