BYRRHID.E 3 1 



plumbeous hairs. Length 6.6-7.2 mm.; width 3.7-4.2 mm. Idaho 



(Coeur d'Alene), \Vickham wickhami n. sp. 



Form and general characters nearly as in u'ickhunii but larger and stouter, 

 still less evidently inflated posteriorly and much less so than in 

 kirbyi, deep black throughout, the under surface and legs not paler; 

 upper surface nearly as in wickhami throughout, except that there 

 is a notable admixture of fulvous hairs that do not appear in that 

 species, especially noticeable on the pronotum and toward the sides 

 and on the posterior slope of the elytra; vestiture throughout a 

 little longer and coarser than in -wickhami; under surface similarly 

 very densely and strongly sculptured throughout and with the 

 numerous short fulvo-cinereous hairs coarse and conspicuous; 

 punctures of the metasternum distinctly more isolated among them- 

 selves than in the preceding species. Length 7.7 mm.; width 4.7 

 mm. British Columbia (Aldermere), communicated by Mr. Keen. 



consuetus n. sp. 



Most of the species proposed above seem to be very well defined 

 and not subject to much doubt, that is, if the limits of variability 

 disclosed in those few instances where it has been possible to study 

 series of specimens hold true for all. The longitudinal distance 

 separating the irregular transverse pale bands of the elytra is 

 rather variable as a rule, and whether those forms given in the table 

 as wholly unfasciate are constantly so or not cannot be conjectured, 

 though this would seem to be highly probable. Neglectus is without 

 much doubt a valid species, distinct from americanus, but my 

 single specimen is in very poor condition, being almost entirely 

 denuded; possibly brunnescens may be a subspecies of americanus 

 rather than neglecttis. The transverse subposterior lateral black 

 spot so characteristic of the posteriorly inflated kirbyi section, is 

 also evident in geminattis, and, besides the more developed pubes- 

 cence, this species is distinguishable from americanus, which it 

 otherwise much resembles, by the stronger and denser abdominal 

 sculpture. Egenus is a very aberrant species and it is unfortunate 

 that my only specimen, as in the case of Cytilus nigrans, should be 

 almost completely denuded and bald on the upper surface through- 

 out, as the pubescence would doubtless have a different type-form 

 from that prevailing elsewhere. Perditus, represented by two 

 mutually similar examples, is a peculiar species, having an unusually 

 small head; I have placed with it two other forms which evidently 

 differ, but which are rather too indefinite or too imperfect to 

 describe; one, unlabeled in the Levette cabinet, represented by two 



