H. C. FALL. 123 



longer than the three following. I am quite confident that tliis is 

 Boheman's species, but only a reference to the type can settle the 

 matter with certainty. 



22. A. Til II ere II 111 n. sp. — Elongate, black, opaque; puhescenr.e almost want- 

 ing. Beak ( 1, ) somewhat shorter than the head and prothorax, ratlier slender, 

 not strongly curved, moderately dilated, finely sculptured and opaque almost 

 throughout; punctuation rather fine and sparse. Antennse piceons brown ; first 

 joint about equal to the next two, second rather slender, reaching the eye. Front 

 somewliat depressed, canaliculate; eyes moderate. Prothorax cylindrical, evi- 

 dently longer than wide; base just visibly wider than the apex; sides nearly 

 straight: punctuation rather strong and close; impressed line nearly complete. 

 Elytra narrow, subparallel ; humeri moderate; strife well impressed, i-ather 

 closely punctate; intervals flat or slightly convex, about twice as wide as the 

 striae on the disc. Beneath rather closely and coarsely punctate ; legs slender ; first 

 joint of tarsi more elongate than usual, being more than twice as long as wide ; 

 claws with a small but evident tooth. Length 2.2 mm. ; .09 inch. (PI. II, fig. 20). 



% . Anterior thighs scarcely swollen ; smooth area limited to the inferior 

 groove which is not striate. Front tibia; very feebly widened ; middle tibia with 

 a small raucro; hind tibia scarcely visibly armed ; other characters as usual in 

 the group. 



9. Beak iiot longer than the bead and thorax, slender, strongly arcuate, 

 polished in apical fourth : tips of elytra scarcely j)roduced. 



Hab — Oregon, California, Washington (Camp Umatilla). 



Tiie opaque surface, parallel form and sexual characters render 

 this a very distinct species The front thighs of the male are just 

 visibly enlarged, but so feebly that it might readily escape observa- 

 tion. The armature of the hind tibise is, as a rule, feebler than that 

 of the middle tibise, but the mucro is here exceptionally minute. 



23. A. o<'ci<leiitiile n. sp. — Elongate, black; legs usually piceous brown: 

 not very shining and with never any metallic lustre; pubescence very sparse but 

 evident. Beak not very slender, rather feebly arcuate, a little shorter than the 

 head and prothorax, nearly cylindrical, moderately dilated ( 'J. ) ; longer, scarcely 

 dilated ( 9 ) ; finely strigose nearly to the tip ; punctuation fine, sparse. Antenna 

 with first joint equal to the next two ( % ), or three ( 9 )> third joint reaching the 

 eye. Front canaliculose; eyes not prominent. Prothorax notably longer than 

 wide, subcylindrical ; base plainly wider than the apex ; sides slightly prominent 

 at the middle, moderately closely punctate; impressed line nearly complete. 

 Elytra narrow ; humeri rather strong ; sides feebly ai-cuate ; intervals flat, about 

 twice as wide as the strite on the disc. Beneath sparsely, rather finely punctate. 

 Legs slender; claws nearly simple. Length 2.2-2.4 mm.; .09-.10 inch. (PI. II, 

 figs. 10 and 25). 



% . Front thighs scarcely visibly enlarged ; smooth area almost entirely infe- 

 rior, very finely, not do.sely striate; limiting ridge present; front tibise only 

 slightly widened ; other characters as usual. 



9 . Tips of elytra more or less produced. 



Hub. — Kansas, Nebraska, Texas, Colorado, Utah, Arizona, Ore- 

 gon, California. 



TRANS. AM. ENT. SOC. XXV. OCTOBER. 1898. 



