Goleopferological Notices, VII. 313 



This species may be readily known among the allies of crista- 

 tus by the rather coarse, close, deep and uneven sculpture of the 

 elytra, scarcely constricted prothorax with the sides subparallel 

 near the base and not strongly divergent, and by the rather shorter 

 basal joint of the antennae. Three specimens. 



4. B. rugiceps Horn— Trans. Am. Ent. Soc, IV, 1872, p. 143 ; 1. c. : 

 VII, 1878, p. 177. 



Form moderately elongate, black, feebly shining. Head mod- 

 erately elongate; vertex elevated into an iri'egular obtuse crest; 

 supra-orbital ridges well defined ; front transversely impressed be- 

 tween the bases of the antennae ; occiput not impressed ; gense 

 moderately dilated, incised beneath the eyes ; antennae slender, 

 basal joint large and stout. Prothorax cordate, moderately con- 

 stricted posteriorly ; sides in front arcuate, posteriorly sinuate ; 

 hind angles rectangular ; margin with a slightly thickened bead ; 

 disk feebly convex, anterior, median and basal lines not deeply 

 impressed. Elytra regularly oval ; margin narrowly reflexed ;. 

 disk moderately convex ; surface with about eighteen moderately 

 deeply impressed striae in which the punctures are coarse but not 

 approximate ; intervals convex ; inflexed portion nearly smooth. 

 Body beneath and legs smooth. Length 14-17 mm. 



Oregon. The sculpture of the head is said to recall that of cer- 

 tain species of Clivina, but with a more elevated carina, and the 

 prothorax, by its more feebly impressed lines, recedes from the 

 other cristate species and approaches punctatus. The male char- 

 acters are as in cristatus. I have seen no example of this species 

 and simply transcribe the diagnosis of Dr. Horn. 



5. B. incipiens n. sp. — Eather strongly ventricose, shining Head some- 

 what small and unusually abbreviated, without trace of transverse nuchal con- 

 striction, the median parts of the vertex thrown up in a very irregular and 

 feeble longitudinal elevation, the posterior limit of which — between the hind 

 margins of the eyes — being more definitely tuberculiform ; supra-orbital ridges 

 very strong but unusually short, the antennal prominences large; labrum 

 wider than long; antennae slender, but slightly more than }4 as long as the 

 body, the basal joint obconic though only moderately thickened and not as 

 long as the next two, the seta very near the apex as usual in this genus ; 

 gense rather prominent, angularly incised. Prothorax fully as long as wide, 

 widest just before the middle, where the sides are somewhat prominently 

 rounded, thence convergent and broadly arcuate to the apex and strongly con- 

 vergent to the base, near which they become feebly sinuate; base very narrow, 

 scarcely more than ^ as wide as the head; angles obtuse and blunt; double 



