11 



The elytra stout, slightly less than one-third longer than wide, the bases 

 arcuate, elevated and finely crenulate as usual; the sides faintly arcuate, semi- 

 circularly rounded behind as viewed from above; shining; the strise very narrow 

 and finely punctured, moderately regularly outcurved towards the base on the 

 disc, moderately but distinctly impressed on the disc, wider, slightly more 

 coarsely punctured, and rather strongly impressed on the sides; the interspaces 

 wide, slightly convex on the disc, more distinctly so on the sides, densely 

 granulate-punctate with a few very coarse and many finer granules intermixed, 

 the coarser ones confused on the middle, becoming transverse rugosities near the 

 base, the smaller granules disappearing and the coarser granules becoming 

 uniseriate small acute serrations towards the declivity, the coarse granules 

 uniseriate on the first interspace throughout becoming obsolete at the base; the 

 second interspace hardly widened at the base; the declivity very closely punctured; 

 the first and third interspaces slightly elevated, each with a regular row of rather 

 small acute serrations, those of the first more sparsely placed; the second slightly 

 wider than the first or third, not narrowed towards the tip, with two or three 

 very small serrations near the apex, very closely punctured; the outer inter- 

 spaces finely serrate; the pubescence yellow, fine and short on the disc becoming 

 moderately thick, stout and somewhat scale-like on the declivity. 



Variations: The second interspace on the declivity has in some specimens a 

 few very small serrations at the top or on the face of the declivity, sometimes on 

 one side only; these are evidently nearly obsolete in this species. The smooth 

 median line, and the lateral calli are distinct in all the specimens available, and 

 are usually well developed. The length varies from 3mm. to 3 -8mm. 



Described from ten specimens; Scaffold Meadow, Tulare Co., Cal.; Hopping. 



Pseudohylesinus, new genus. 



Hitherto included in Hylesinus; suboval from above; elytra densely scaly; 

 the declivity normal; the forecoxse narrowly separated; the elytra! bases 

 strongly arcuate, slightly elevated and regularly serrulate; the mesosternum 

 somewhat inflated, the venter of the abdomen somewhat oblique; ventral 

 segments, 1, 2 and 5 subequal in length; the proventriculus with the diagonal 

 lines rather feebly developed; the ligula w r ide, from a convex chitinized base. 



The type of the genus is Pseudohylesinus grandis, described herewith. 



Pseudohylesinus tsugae, n. sp. 



Description of female. A stout species, of moderate size and reddish-brown 

 colour, sparsely clothed with short stout hairs, with tufted hairs on the sides 

 and narrow scales on the declivity; length 4-5 mm.; width 2mm. 



The head has the front convex, shining, the punctures dense, rather coarse, 

 shallow, granulate above; the beak short, twice as wide as long; the transverse 

 arcuate impression semicircular, narrowly impressed, deepest at the middle line; 

 the epistoma deeply, transversely impressed and strongly margined; the median 

 carina fine, acute, disappearing between the eyes; the antennal club with the 

 first segment equal to the next two. 



The pronotum is slightly less than one-half wider than long; slightly but 

 distinctly narrower than the elytra, strongly bisinuate behind; the sides slightly 

 arcuate, moderately narrowed from the base to slightly beyond the middle, 

 then constricted and broadly rounded on the front margin, the constriction 

 extending over the disc as a broad impression; the punctuation small with a 

 few larger punctures intermixed, dense, finely rugose, faintly asperate at the 

 sides, smaller and closely granulate in front; the median line faintly, finely 

 carinate ; the pubescence of short, stout, reclinate hairs, becoming longer on the 

 sides in front, longer and penniform in front of the scutellum. 



16380 2 



