472 Memoirs on the Coleoptera 



Body more elongate, narrower, subcylindric or feebly anteriorly nar- 

 rowed, the habitus extremely similar to that of Limnoharis T-albiim 



and pusio. [Subg. Limnobaropsis nov.] 7 



2 — Prothorax not inflated at the sides 3 



Prothorax more or less strongly, laterally inflated and rounded, appar- 

 ently in both sexes 6 



3 — Head half as wide as the thoracic base. Body elongate-suboval, 

 strongly convex, feebly alutaceous, deep black; beak in the female 

 much longer than the head and prothorax, cylindric, nearly straight, 

 just visibly and evenly arcuate, finely, not densely punctate, the 

 antennse at the middle; prothorax a fourth wider than long, the 

 sides moderately convergent and just visibly arcuate, rounding at 

 apical third to the strongly tubulate apex, which is inuch more than 

 half as wide as the base; punctures moderately coarse but not deep, 

 finer medially, everywhere well separated, the propleura rugulose; 

 median smooth line entire; elytra four-fifths longer than wide, 

 evidently wider than the prothorax and more than twice as long, 

 the humeral swellings broad but feeble; sides parallel and feebly 

 arcuate, broadly and circularly rounding in about apical third; 

 grooves narrow but very deep and abrupt; intervals at least three 

 times as wide as the grooves, with fine and subconfused, slightly 

 transverse, loose punctuation; abdomen finely, sparsely punctate; 

 legs slightly picescent. Length (9) 4-7 mm.; width 1.75 mm. 



Illinois rectirostris Lee. 



Head much less than half as wide as the thoracic base 4 



4 — Elytral grooves smooth, though closely punctate along the bottom. 

 Body larger in size, polished and deep black throughout; beak in 

 the male thick, very strongly sculptured, straight, becoming slightly 

 arcuate in about apical half, as long as the prothorax, the antennae 

 at four-sevenths, the club extremely slender, fully three times as 

 long as wide, as long as the four preceding joints; prothorax between 

 a fourth and third wider than long, the sides subparallel and very 

 feebly arcuate, rapidly rounding at apical third, becoming subtrans- 

 verse to the notably long tubular apex, which is half as wide as the 

 base; punctures not very coarse, shallow and well separated, with a 

 submedian elongate impunctate spot at each side near outer fourth 

 and an entire impunctate median line; base very obtusely and feebly 

 cuspidate medially, the scutellum smooth flat and quadrate; elytra 

 three-fourths longer than wide; only slightly wider than the pro- 

 thorax and more than twice as long, with rather prominent humeral 

 swellings, the sides parallel and straight, gradually converging and 

 broadly, circularly rounding behind, the grooves very moderate; 

 intervals three to nearly four times as wide as the grooves, the 

 punctures subtransverse, moderately strong, confusedly subserial 

 and not dense; abdominal punctures, fine, not close, the abdomen 

 strongly impressed medially at base in the male; anterior coxae 

 separated by rather less than half their width. Length (cf ) 5.8 mm.; 

 width 2.25 mm. North Carolina (Southern Pines), — Manee. 



nimius n. sp. 



