Coleopterological Notices, IV. 641 



apical two-fifths ; humeral callus not prominent ; disk polished, rather finely, 

 abruptly, evenly striate, the intervals fiat, a little more than twice as wide as 

 the grooves, each with a single series of fine, rather distant punctures. Abdo- 

 men feebly, not closely punctured. Presternum broadly, very feebly impressed 

 along the middle, with a small feeble subtransverse fovea behind the apex, the 

 sides of the longitudinal impression slightly prominent in the form of a low 

 obtuse ridge for a short distance before each coxa, but without trace of ante- 

 coxal cusp, the coxae separated by slightly less than one-half of their own 

 width. Length 2.2-3.2 mm. ; width 0.85-1-4 mm. 



District of Columbia. Mr. Jiilich. 



The above description is drawn from the male. In the female 

 the beak is slightly more slender very feebly arcuate and as long as 

 the head and prothorax, with the antennae inserted at or just behind 

 the middle. The antennae are longer and more slender, the second 

 funicular joint almost as long as the next two, and the prosternum 

 is perfectPy flat, separating the coxae by fully three-fourths of their 

 own width. Concurrent is allied to conjinis, but differs in its 

 much longer beak, especially in the male, and by its narrower an- 

 tennal club. Numerous examples. 



18 Limnobaris concinua Lee. — Proc. Am. Phil. Soc, XV, p. 316 

 (Centrinus). 



Oblong-oval, decidedly convex, black throughout, moderately 

 shining, smooth, the vestiture consisting above and beneath of long 

 sparse narrow white but very distinct squamules, arranged in single 

 lines on the elytral intervals. Beak not quite as long as the pro- 

 thorax and slender in the female, distinctly shorter and thicker in 

 the male, feebly arcuate, slightly gibbous at the basal constriction, 

 which is fine but distinct, roughly punctured and dull in the male, a 

 little smoother in the female, the antennae very slightly ante-median 

 in both sexes, short, stout, the first funicular joint as long as the 

 next three, two to seven small, equal in length but increasing in 

 width ; club relatively large, fully as long as the preceding six 

 joints, densely, rather coarsely pubescent, the basal joint composing 

 nearly one-half the mass. Prothorax not quite as long as wide, 

 parallel, distinctly constricted at apex, the latter about three-fourths 

 as wide as the base ; disk rather sparsely, strongly punctate. Scu- 

 tellum very small, elongate-oval, glabrous. Elytra equal in width 

 to the prothorax and three-fourths longer, parallel, rounded behind 

 in apical third ; striae very fine ; intervals minutely, uniseriately 

 punctate and remotely transversely creased. Prosternum flat, sepa- 



