NORTH AMERICAN COLEOPTERA. 47 



with a (lorsiil line (oveate near base. Elytra but little ovate, slightlv aeneous, 

 striae moderate, intervals wide, flat or slightly convex. Length 1.5—2 mm. 



/faJ>.—Wy., Dae, Col. 



This species is peculiar by the stout, distinctly punctured rostrum, 

 only one other species in another § (nffenuatnm) approachinfj it in this 

 respect. The 9 diflFers considerably from the % , first in the lariier but 

 equally stout rostrum, and second, by the thorax which is nearly as wide 

 as long and distinctly wider at middle, and somewhat constricted at base ; 

 this makes it resemble (tffrnimfnm enouoh to render care requisite to dis- 

 tinguish the species ; the rostrum of the 9 , however, is larger than in 

 the 9 atfenuafuni, and the elytral sculpture among other differences ren- 

 ders a separation possible. The dorsal line of thorax, which becomes 

 foveatc at base, is another distinguishing feature of this species and allies 

 it to the following groups where it is the rule. From Wyoming there 

 are four % s, ( Coll. Dr. Horn) and from Mr. Ulke I received a % and 

 two or three 9 s from Dae. and Calif. ; the male agreed with the speci- 

 mens from Wyoming, the 9 differed from all the S s as above specified, 

 and differed from each other in some points. A large series of this 

 species would be interesting and desirable. ' 



A, parallelum n. sp. — Black, elongate, slender, pubescent. Head moder- 

 ate, eyes small but distinct, front punctured, rostrum moderate. Antennae with 

 basal joint largest and yellow. Dorsal line of thorax obsolete, punctures moderate, 

 sides equal. Elytral striae wide, punctures distinct, intervals narrow, convex, 

 scabrous. Length 1.5 mm. 



Hah.—D. C, Tenn. 



Peculiar by the dense pubescence and the very narrow parallel form. 

 The shape of the thorax evidently refers it here, while the dense 

 pubescence as readily distinguishes it from all its neighbors. 



Two specimens received from Mr. Ulke from the above localities, one 

 in my collection. 



A. estrmtnm u. sp. — Black, very slender, not pubescent. Head scarcely 

 as long as wide, conlluently punctured; eyes distinct, convex; rostrum elongate, 

 slender; basal joint of antennae slightly longer than second; second slightl}' 

 longer than third. Thorax with punctures rather superficial, usual impressed 

 line obsolete and only very faintly visible at base. Elytra narrow, ovate ; striae 

 fine, punctures di.stinct, intervals wide, flat and smooth. Length 1.5 mm. 



IIah.—(\m., Col., Tex. 



Distinguishable by its slender form, small size and the want of an 

 evident dorsal line on thorax ; but few specimens received from widely 

 separated localities. 



A. ovale n. sp. — Black, form ovate. Head longer than wide, eyes slightly 

 prominent, rostrum elongate, slender, antennae as before, second joint stoutest 



