CERAMBYCID/E 345 



Mr. Bates does not appear to mention the short stiff erect setae 

 arising from the elytral punctures in this genus; they are very 

 obvious in both of the above species. 



Tribe POGONOCHERINI. 

 Pogonocherus Latr. 



The small species of this genus having truncate elytral apices 

 and allied to penicillatus and mixtns, are very different in appearance 

 from certain larger forms, such as negundo, with rounded apices, 

 and should probably constitute a distinct genus; but, as both are 

 distinct in habitus from the European species, with which crinitus 

 Lee., is congeneric, no separation should be made except in a general 

 study of the tribe. Excepting the Pacific coast, these allies of peni- 

 cillatus and mixtus are rather numerous in the colder parts of North 

 America, to which regions they are virtually limited, but have 

 never formed the subject of special study. The antennae differ 

 but little sexually and vary from a little longer, to evidently shorter, 

 than the body, the latter generally the case in the female; they are 

 testaceous throughout, the joints gradually black apically, almost 

 nude, but with a loose fringe of rather long, erect and sparsely placed 

 hairs beneath, the scape oval, short and stout, gradually much 

 narrowed toward base. The female has a sharply marked deep 

 transverse excavation at the apex of the fifth ventral, this segment 

 in the male being shorter, unmodified and sinuato-truncate medially 

 at tip; the thighs are moderately but rather abruptly clavate. 

 The species of this group, as represented in my cabinet and including 

 parvulus, simplex, alaskanus and arizonicus, the characters of which 

 are drawn from published descriptions, are as follows: 



Elytra each with three discal carinae, the outer two very sharp, the inner 

 more obtuse and bearing tufts of agglomerated erect black hairs, 

 of which one is subbasal 2 



Elytra without acute and sharply marked carinae, though occasionally 

 strongly and obtusely ridged 3 



2 Prothorax longitudinally plicato-rugose and closely punctate; body 

 stout, piceous, the scattered erect black hairs unusually long; head 

 narrower than the prothorax, which is about a fourth wider than 

 long, evidently wider at apex than at base, the lateral prominences 

 sharply dentiform but not spiculate; surface rather closely pubescent, 

 pale along the apex and base, with two strong polished tubercles 

 and a third, very small and feeble, on the median line behind the 



