292 MEMOIRS ON THE COLEOPTERA 



met-episterna narrower and parallel or very nearly; antennae more 

 or less flattened distally and often prominently convex along the 



inner face of the joints 7 



7 Elytra spinose at tip. [Type Cerambyx villosus Fabr.]. . . Hypermallus 



Elytra narrowly truncate at tip, the sutural angle distinct and sometimes 



very minutely dentiform; hind body shorter and relatively broader 



in form. [Type Elaphidion cinerascens Lee.] Anoplium 



As may be inferred, the genus Aneflus, as formerly organized by 

 LeConte, was complex and included the above defined genera 

 Anepsyra and Aneflomorpha as well as Aneflus proper. The ar- 

 rangement here proposed makes the transition from such forms as 

 Anoplium mozstum Lee., to the genus Tylonotus very easy and 

 natural but widely separates Elaphidion from Hypermallus; this 

 however I believe to be correct as the remarkable prosternal char- 

 acters and very long spine of the antennae show that it is not closely 

 related to Hypermallus, in spite of a certain general facies in com- 

 mon. It seems evident that nearly all the described species can 

 be distributed among the above denned genera, though a few may 

 demand still other generic or subgeneric assignment, such for 

 example as Elaphidion levettei Csy., which is not a typical Aneflus, 

 where it is placed by Schaeffer, and E. lanatum Chev., as identified 

 by Horn (Ent. Amer., VI, p. 214) from Florida, the latter being 

 only 4-5.5 mm. in length, which alone casts suspicion upon it as a 

 member of this group. The true Cuban lanatum is a very different 

 thing, if the above published measurements are correct, it being 

 l 5/^2 by 3^2 mm. in dimensions. 



The genus Eustroma Lee., probably belongs with the others 

 included above in the Elaphidion section of the Cerambyci, but is 

 here omitted for various reasons. 



Elaphidion Serv. 



The type of this genus, irroratum Linn., has the posterior limit 

 of the prosternum transversely acute, the posterior wall vertical 

 or even concave, but in mucronatum the posterior limit is not acute 

 and the wall is barely vertical ; these two species also differ very 

 much in general elytral sculpture and vestiture but appear other- 

 wise to be congeneric. Mimeticum Schf., and mutatum Gahan, may 

 also be placed here, as well as tectum Lee., though in tectum there 

 seems to be a notable diminution of the antennal spines when com- 



