AMERICAN COLEOPTERA. 49 



•Mouth, base of antennce and prothorax yellow ; the latter deeply concave at 

 the middle, and finely punctulate, legs more or less testaceous. Length 



5 mm.; Can.; Fla., (Bolter) 29. simplex Couper. 



13. — Piceous, legs, front part of head and base of antennae dull testaceous, pro- 

 thorax not wider than long, somewhat narrower than the head. Length 



6 mm.; N. H. ; Can.; L. Sup 30. leevicollis Kirby. 



14. — Muzzle broad, head less narrowed behind, finely punctulate; fourth tarsal 



joint deeply bilobed. Yellow above, head behind the eyes and under sur- 

 face piceous ; antennae piceous, base yellow ; palpi yellow, dark at tip ; hind 

 margin of elytra and tarsi piceous; prothorax feebly punctulate, not longer 

 than wide, posterior concavity broad and deep, convexities narrow, promi- 

 nent. Length 7.5 mm.; Cal., Tejon: one specimen 33. tejoiii<'iis Lee. 



Muzzle short, head less narrowed behind, smooth; fourth tarsal joint deeply 



bilobed. Black, mandibles and palpi pale, piceous at tip; prothorax very 



• smooth and shining, somewhat wider than long, posterior concavity deep, 



convexities prominent, oval, bright yellow, apical and basal margin black. 



Length 6 mm.; Penn.; Can 32. I»altoiii Lee. 



Muzzle short ; form very elongate, head not opake, strongly narrowed behind, 

 sparsely punctured, eyes prominent; fourth tarsal joint deeply bilobed. 

 - ' Black, mandibles and sides of prothorax reddish-yellow; the latter longer 

 than wide, indistinctly punctulate, sides parallel, front angles obliquely 

 truncate, posterior concavity det^ and large, convexities narrow, prominent. 

 Very closely resembles viacer, but the head is not densely punctured, and 

 tlie fourth tarsal joint is quite dilFerent, being deeply bilobed. Length 

 6.5 mm.; Cal., Lake Tahoe; one specimen, (Bolter) 31. Bolleri n. sp. 



C. 



The three species in this dixision- are simihir in appearance, being 

 very slender, yellow above, piceous beneath, with the lcg.s and base 

 of antenncie yellow; the head is blackish behind the eyes and very 

 much narrowed ; the eyes are prominent. The last joint of the maxillary 

 palpi is rather large, triangular, moderately dilated, with the distal side 

 rounded and the inner angle not well defined. The tarsi are long and 

 slender, the front pair stouter in corneus ; the claws cleft at the tip, 

 with the lower point as acute and nearly or quite as long as the upper. 

 Prothorax sparsely punctured, small, not wider than long, deeply exca- 

 vated, with elongate convexities. 



Fourth tarsal joint deeply bilobed 2. 



Fourth tarsal joint slightly emarginate ; head strongly, not very densely punc- 

 tured; prothorax sparsely punctured with the sides rounded in front; 

 antennaj with the second and third joints equal, each scarcely shorter than 

 the fourth; elytra finely rugose, piceous at tip; base of thighs and tarsi 

 piceous; outer claw of hind tarsi toothed, all the others cleft ; % 9 ■ Length 

 9 mm.; CaL, Geyser, (Bolter) ; Nev., (Horn) 34. niellitus n. sp. 



2.— Head strongly, more densely punctured ; prothorax nearly smooth, sides more 



broadly rounded in front ; antenna? piceous, witli second, third and fourth 



, joint gradually increasing in length ; elytra blackish at tip ; legs piceous, 



tinged with testaceous; %. Length 9 mm.; Cal.; two % ...35. coriieus Lee. 



TRANS. AM. KNT. SOC. IX. (fi) SIAV, 1881. 



