BYRRHID/E 41 



the vestiture a little longer, coarser and more conspicuous, pale 

 fulvous, irregularly variegated with cinereous; prothorax almost 

 three times as wide as the median length, the sides as in the preceding 

 but still less arcuate, the median line more finely and acutely im- 

 pressed almost throughout the length, the apical angles similarly 

 produced and acute; scutellum slightly narrower and more elongate, 

 otherwise similar, ogival ; elytra almost similar in form, except that 

 the humeri are more broadly rounded and the sides, in rather more 

 than apiral third, more gradually and arcuately converge around 

 the more broadly and evenly rounded obtuse apex; abdomen similar 

 in form, convex, densely opaque because of the rather coarse, very 

 deep and dense cribrate punctures, which are almost equal through- 

 out; hypomera inwardly and deeply impressed almost throughout, 

 coarsely, moderately closely cribrate, the sulcate prosternum with 

 coarse perforate punctures, separated by a little less than twice 

 their own diameters. Length 1.8 mm. width i.o mm. California 

 (Calaveras Co.) densissimus n. sp. 



3 Abdominal punctures very dense throughout, only very slightly 

 smaller medially than laterally 4 



Abdominal punctures materially less coarse and more widely separated 

 medially than laterally, the entire surface of the abdomen more 

 shining 5 



4 Body larger, oblong-oval, convex, black, rather shining, the pubescence 

 short, coarse, decumbent, not dense, cinereous, slightly and feebly 

 variegated with fulvous; head with large and very dense polygonal 

 punctures; prothorax more than twice as wide as long, the sides 

 rather strongly converging from base to apex and moderately ar- 

 cuate; surface feebly, subacutely impressed along the middle part of 

 the median line and with small punctures, separated by more than 

 twice their own diameters, becoming much coarser and denser but 

 not polygonal laterally, also with a short, transversely arcuate 

 series of tumid punctures at the middle; scutellum slightly longer 

 than wide, rather finely punctured like the middle of the pronotum; 

 elytra about a fourth longer than wide, the sides parallel and straight, 

 rounding at base, rapidly and strongly converging and but slightly 

 arcuate in apical third to the narrowly obtuse apex; punctures 

 coarse, deep, impressed, separated by their own diameters; abdomen 

 dull, the punctures moderate in size, deep and very dense through- 

 out, the third and fourth sutures strongly, evenly arcuate through- 

 out the width and much stronger than the first two. Length 1.95- 

 2.1 mm.; width 1.15-1.2 mm. Described here from Iowa and 

 Louisiana; specimens originally cited from Pennsylvania. [Lim- 

 nichus punctatus Lee., Proc. Acad. Phila., 1854, p. 116; L. olivaceus 

 Lee., I.e.] punctatus Lee. 



Body rather large, somewhat as in punctatus but much narrower, duller, 

 with denser sculpture and vestiture, the coarse close-set hairs on 

 the elytra luteous, more definitely and sharply maculate with cine- 

 reous than in punctatus; prothorax relatively shorter, almost three 

 times as wide as the minimum length, with the sides less strongly 

 converging from base to apex and nearly straight; punctures 



