AMERICAN COLEOPTERA. 119 



Elytra rufous shining, as long as wide, dorsal series of five or six rather deeply 

 impressed punctures, sutural and lateral series more feebly impressed. Epl- 

 pleurre black. Abdomen pitchy black, apices of segments paler, surface smooth, 

 sparsely punctured. Body beneath black, abdomen coarsely punctured, more 

 densely on the last two segments. Legs testaceous, anterior coxae piceous at 

 base. Length (including head), .34 inch; 8.5 mm. 



T can find no sexual differences in three specimens. 



This species and the next have the head distinctly widest at base. 

 There is in some specimens a darker cloud along the discal series of 

 punctures. 



Occurs in Canada. 



B. quiesitor, (rosiraius || Lee.) — Black shining, elytra with rufous stripe 

 extending from humerus to apex broader behind. Head more than twice as 

 wide as long, broadest at base. Antennae black, basal half of first joint paler, 

 also the tip of the last joint. Thorax distinctly wider than long, narrower than 

 the elytra at base, hind angles obtuse. Elytra as broad as long, moderately 

 convex, humeral umbone moderately prominent, discal series of five rather 

 deep punctures, sutural and lateral series much finer j color black with a rufous 

 vitta on each, narrow at the humerus rapidly becoming broader to apical margin 

 attaining the suture. Abdomen black, shining, sparsely punctured. Body be- 

 neath black, shining, abdomen coarsely but sparsely punctured. Legs pitchy 

 black. Length (including the head), .28 — .40 inch; 7 — 10 mm. 



No sexual characters apparent in two specimens. 



The very great length of head is certainly a most remarkable 

 character. 



Two specimens, New York and Illinois. 



B. biseriutus, 3Iann,, from Alaska, is unknown to us. 



BRYOPOKUS Kraatz. 



This genus has been united with Mycetnporus by Fauvel, (Bull. Soc. 

 Linn, de Norm. X, p. 247), but in this I cannot coincide. A careful 

 study of all the specimens which have come before me of both genera 

 has shown that the maxillary palpi have the last joint distinctly conical, 

 as broad nearly at its base as the apex of the preceding joint, and 

 consequently not capable of retraction. In Mj/cetoporus on the con- 

 trary the last joint is distinctly subulate, much more slender than the 

 preceding and very plainly capable of retraction to a greater or less 

 extent. Should there be any union at all, this would rather become 

 JSofitohius than Mijcctoporus, from which however the numerous rows 

 of punctures and the structure of the tibiae at tip readily dis- 

 tinguish it. 



As in two species of Mijcctoporu^ the middle and posterior tibiae are 

 fimbriate with closely phiced equal spitiules. 



I am unable to separate the series now before me into any greater 

 number than two species. 



