AMERICAN COLKOPTERA. 427 



deeply constricted behind tlie anterior margin, latter not elevated, scarcely euiar- 

 ginate at tbe middle, lateral tubercles distinct, transverse, acute, doreal channel 

 entire, narrowed from the base to the ai)ex, surface densely and rather coarsely 

 punctured, sides and channel clothed with pale scales; scutel minute, glabrous. 

 Elytra one-third wider at the base than the the prothorax, a little longer than 

 wide, gradually narrowed from the humeral prominence, strise wide, well im- 

 pressed, closely and distinctly punctured, interspaces rather convex, rugose, pos- 

 terior callus ob.solete, lateral spot as in the preceding species, a spot on the fourth 

 interspace, about one-fourth from the base of white scales, femora feei)ly clubbed, 

 distinctly toothed, tooth of anterior pair very small, tibise moderate, widened 

 toward the apex, thighs and tibise obscurely annulate with white scales, tarsi and 

 claws as in angulatus. Length 2.2 2.7 mm. ; 0.09-0.11 inch. 



% . Last ventral segment distinctly foveate, tibiae not unguiculate. 



Hab. — California, Vancouver, Oregon, Washington, British Col. 



Numerous specimens are before me. Confounded with aufjulatus, 

 from which it is sufficiently distinguished by its smaller size, less 

 robust form, the anterior thoracic margin very slightly emarginate 

 and the absence of an angulated elytral fascia. The lateral spot is 

 present in all the specimens before me, the spot on the fourth inter- 

 space is occasionally wanting; in some specimens there are some 

 smaller spots near the base and on the declivity. 



C\ <>l»Ii4|iiii$i Lee. — Oblong, subdepressed, piceous, legs rufo-piceous, above 

 clothed with small, brown appressed and larger white suberect scales, the latter 

 predominating. Beak curved, long and slender, longer than the prothorax. punc- 

 tured and striate, less punctured and somewhat shining towards the apex in the 

 female, .scrobes le.ss curved and visible, when viewed laterally, in their whole 

 extent; antennae inserted two-fifths from the apex ( 'J, ). or just beyond the mid- 

 dle, first joint of funicle stout, second joint slender, longer than the third, three 

 outer joints short, club ovoidal. Head broadly sulcate with a crested line each 

 side of stout, erect scales; prothorax a little wider than long, two-fifths wider at 

 the base than at the apex, the latter broadly and strongly constricted, sides 

 rounded, apical margin slightly emarginate at the middle, lateral tubercles large, 

 channel distinct, entire, surface coarsely punctured, sides and channel clothed 

 with elongate, whitish scales; scutel quite distinct, glabrous. Elytra longer than 

 wide, one-third wider at the base than the prothorax. feebly rounded on the sides 

 and narrowed jjosteriorly ; striie very fine and superficial with a row of white, 

 piliforni scales concealing the very small punctures, interspaces wide, flattened, 

 rugose, lateral spot as in angulatus, the s\irrounding spiice less densely clothed 

 with white scales, thus giving it a shaded appearance, another less conspicuous 

 spot at the apex of the sutural striae; underside densely punctured and sc-aly. 

 scales large, dirty gray, crowded ; femora not robust, tooth rather large, distinct 

 on all, tibiie straight, slightly widened from base to apex, tarsi and claws as in 

 angnlatius. Length 2.8 mm. ; 0.11 inch. 



% . Last ventral segment with large and sharply defined fovea ; tibite not 

 unguiculate. 



9. Pygidium impressed. 



Hab. — California (Lee. Nat. Mus. coll.), Arizona (Dr. Horn's 

 and Mr. Ulke's coll.), Texas (A. Bolter), Utah (my own coll.;. 



TRANS. AM. KNT. SOC. XXIII. DECEMBER. 1896. 



