Baring 413 



feeble and with some coarse pale scales; punctures coarse, separated, 

 confluent and rugulate laterally, the linear scales very small and 

 inconspicuous; median smooth line partially evident; scutellum 

 transverse, densely albido-squamose; elytra parabolic, a fifth longer 

 than wide, at the rather prominent humeri much wider than the 

 prothorax, twice as long; grooves very coarse, finely, remotely 

 punctate and opaculate; intervals subequal, less than twice as 

 wide as the grooves, shining, with coarse and close punctures which 

 are generally narrowly confused, but forming single series in some 

 places, the fine slender scales pale and evident, not at all close; 

 under surface with the oval whitish scales, more or less separated 

 and lying within coarse punctures. Length (9) 4.0 mm.; width 

 1.85 mm. Oklahoma (Atoka), — Wickham. One example. 



atokanus n. sp. 



Prothorax widest at base 3 



3 — Sides of the prothorax feebly converging and subevenly arcuate, or 



gradually more arcuate apically 4 



Sides moderately converging and evenly, just visibly arcuate to just 

 behind the apex, where they are rapidly turned inward for some 



distance to the apex; body small 13 



4 — Body, and especially the elytra, rufous in color 5 



Body black, sometimes uniformly blackish-brown 6 



5 — Body not very stout, subrhomboid-oval, obscure rufous, the anterior 

 parts generally darker; antennae inserted at four-sevenths (9), or 

 rather beyond three-fifths (cf ), the tooth of the club obtuse, the 

 last funicular joint but slightly transverse; prothoax short, one-half 

 wider than long, subevenly rounded at the sides, the punctures 

 coarse and close-set but not very dense, smaller medially, the median 

 line partial and indefinite; elytra a fourth longer than wide, para- 

 bolic and with obtuse apex, twice as long as the prothorax, the 

 humeri somewhat prominent; grooves rather coarse, the intervals 

 flat, sometimes distinctly alternating in width, the punctures moder- 

 ate, confused or forming in great part single series, the scales yel- 

 lowish; under surface with broad dense whitish scales as usual. 

 Length (cf 9 ) 3.5-4.2 mm.; width 1.4-2.0 mm. Northern Illinois. 



Six specimens rufobrunneus n. sp. 



Body stout, nearly as in the preceding in coloration, the elytra relatively 

 more elongate; beak in the female slightly longer than in the same 

 sex of nifobrunneus, four-fifths as long as the elytra, the antenna; 

 nearly similar, except that the club is thicker and more oblong- 

 oval; prothorax fully one-half wider than long, the sides more con- 

 verging than in the preceding, arcuate, the punctures not quite so 

 coarse and more widely separated — by fully half their diameters, 

 the median line indistinct; small squamules denser toward the sides 

 in a manner not elsewhere noticeable; elytra nearly a third longer 

 than wide, somewhat over twice as long as the prothorax, the grooves 

 still coarser, the intervals alternating, the narrower scarcely wider 

 than the grooves; scales more broadly oval, pale yellow, close-set 

 and confused; legs brighter rufous. Length (9) 4-4 mm.; width 

 2.2 mm. Missouri (St. Louis), — Schuster lineatellus n. sp. 



