9 



shining, rather finely and not very closely punctured, except the median side 

 of the first interspace which is densely punctured; with the first and third 

 interspaces moderately convex, each with a regular row of rather sparse, acute, 

 small serrations; the second interspace narrower than the third, flat, not closely 

 punctured, shining and unarmed; the fifth, seventh and ninth convex and each 

 with a few small acute serrations; the fourth, sixth, and eighth less convex 

 and with the serrations slightly developed; the pubescence grey, fine, a httle 

 longer and more conspicuous than usual in this genus. 



The male has the front moderately concave, and the frontal cari la better 

 developed; the first and third interspaces on the declivity are carinate and rather 

 coarsely but sparsely toothed, those of the first much coarser and somewhat 

 sparser than those of the third. 



The type is from Ste. Anne de Bellevue, Que., in Thuya occidentalis. The 

 common species of Eastern Canada, heretofore confused with P. dentatus Say. 



Phloeosinus minutus, n. sp. 



A small species, allied to hoppingi Sw., but stouter and black, with the 

 pubescence sparse, short and reddish. Length, 2 mm. 



Description of the female. — The head has the front plano-concave, coarsely 

 granulate-punctate, with an acute median carina on the cephalic half. The 

 pronotum is stout, wider than long, arcuate on the caudal half, very strongly 

 narrowed and constricted in front; closely, deeply, moderately punctured, the 

 pubescence short and less evident than in hojypingi. The elytra are very stout, 

 but little longer than wide, stouter than hoppingi; the bases arcuate, finely 

 elevated and serrate, the sides parallel, the hind margin very broadly rounded; 

 the striae moderately deep on the disc and rather narrow, deeper on the sides; 

 the strial punctures rather small but distinct; the interspaces moderately con- 

 vex, much wider than the striae, closely granulated, with many fine and fewer 

 somewhat uniseriate coarser granules intermixed; the declivity closely granulate- 

 punctate with the coarse granules larger and acute on interspaces 1 and 3, 

 interspace 2 narrowed towards the apex and finely granulate; the pubescence 

 short and reddish, denser and shorter on the declivity than on the disc but not 

 scale-like. The mesosternum is steep, and the venter of the abdomen 

 moderately oblique, elevated behind. 



The male has the declivity shining, finely punctured but hardly granulate, 

 with interspaces 1 and 3 slightly but distinctly elevated and sparsely, acutel}^ 

 serrate, with one or two similar coarse granules on interspace 5. 



Fairfax, Cypress Ridge, Marin Co., Calif., 5-10-14; Dr. E. C. Van Dyke 

 and Mr. Ralph Hopping. 



Phloeosinus rugosus, n. sp. 



Description of the female. — -A rather small species, length 3mm., width 

 1.3mm., a little more elongate than dentatus, with the strial punctures distinct 

 and coarser than in dentatus and canadensis, but smaller than in punctatus; 

 black with the elytra very dark brown; the pubescence minute and incon- 

 spicuous, yellowish, more evident and minutely scale-like on the declivity; the 

 pronotum and elytra shining. 



The head has the front moderately convex, with a broad transverse arcuate 

 impression in front; a short acute median carina; densely, coarsely granulate- 

 punctate; the pubescence very fine, erect, but indistinct; the eyes deeply 

 emarginate; the antennal club with the sutures oblique. 



The pronotum is stout, wider than long, as wide as the elytra at the base, 

 widest at the hind margin which is bisinuate as usual; the sides broadly arcuate 

 and narrowed, constricted beyond the middle with the constriction impressed 



16380—2 



