154 THE CANADIAN ENTOMOLOGIST. 



of the funicle, more than twice as wide as long and a little wider than the 

 second, third with a broad sensitive terminal button. Prothorax large, 

 one-half wider than long, widest and narrowly rounded at the middle ; 

 sides feebly sinuate toward base, very strongly so when viewed sublaterally; 

 apex broadly, feebly sinuate, much narrower than the base and scarcely 

 more than one-half as wide as the disk, the latter convex, coarsely, 

 sparsely punctate, the punctures closer near the apex, the surface rapidly 

 declivous laterally, the side margins not reflexed. Scutellura well-developed, 

 densely punctate. Elytra scarcely one-third longer than wide and but 

 slightly more than twice as long as the prothorax, at base equal in width 

 to the disk of the latter ; humeri exposed, obtusely angulate j apex very 

 broadly rounded ; disk sparsely, moderately coarsely punctate, the 

 punctures uneven in arrangement, with scarcely any trace of punctured 

 series, alternate intervals subcostiform. Legs moderate in length, very 

 stout ; femora coarsely, sparsely punctate ; tibife triangular, very stout, 

 coarsely, asperately punctate and seriately setose ; tarsi short and 

 stout, the posterior much shorter than the tibiae. Hypomera setose. 

 Length, 12.5 mm.; width, 5.7 mm. 



Queen Charlotte Island. 



Though somewhat allied to calif oriiiais^ this species is readily 

 distinguishable by its larger size, obese form, subcostulate elytra and very 

 stout legs. The bilaterally symmetrical club may possibly be a sexual 

 character, as I am under the impression that there is a specimen of cali- 

 fornictis, in the cabinet of Mr. Rivers, having a similar antennal character ; 

 if so, the hind tarsi of the californicus group are short in both sexes. 



This interesting species was discovered by Rev. J. H. Keen, and 

 the original specimen kindly given me for description by Mr. Wickham, 

 with permission of Mr. James Fletcher, of Ottawa. It has recently been 

 taken in abundance. 



P. thoracicus, n. sp. — Stout, convex, moderately shining, black, with 

 a scarcely visible piceous tinge. Head small, coarsely, confluently 

 punctate, a median area at base subimpunctate ; mandibles very small ; 

 antennae short, black, the scape slightly longer than the funicle, the latter 

 a little longer than the club, with the joints compactly joined, the sixth 

 scarcely wider and not inwardly prolonged ; club in great part sensitive, 

 the two basal joints about twice as wide as long, more developed 

 internally, the last transversely ovulate and eccentrically attached. Pro- 

 thorax large, one-half wider than long, widest and more strongly rounded 



