160 AMERICAN COLEOPTERA. 



tinctly transverse ; the thorax is scarcely at all cordate, the sides being nearly 

 evenly rounded and widest at the middle; the basal fovea is less impressed ; the 

 elytra are also narrower; and the fifth ventral segment is less impressed at the 

 apex. (PI. V. fig. 50). 



Male. — Frout and middle tibiae rather feebly sinuate and mucronate internally 

 at apex ; fifth ventral with slight transverse apical impression. 

 Female. — Unknown. 



■Length 1.9 mm. 



Hab. — North Carolina. One male in the Horn collection. 



V. serrata Payk. — Oblong-oval, moderately convex, rufotestaceous to rufo- 

 piceous, the elytra and corresponding lower surface often darker than the head 

 and prothorax ; pubescence grayish, recumbent. Head distinctly but not closely 

 punctate; eyes moderately prominent ; tempora very short. Antennae scarcely 

 reaching the hind angles of the prothorax, joints 9 and 10 subquadrate. Pro- 

 thorax plainly wider than the head, three-fourths as wide as the elytra, trans- 

 verse, subcordiform, sides rounded before the middle, moderately convergent 

 behind; margin crenulato-denticulate, more strongly so posteriorly as usual; 

 surface closely, moderately coarsely punctate throughout, the punctures separated 

 as :i rule by Less than their own diameters; sub basal fovea rounded, moderately 

 impressed. Elytra with the sides arcuately subparallel, rather broadly obtusely 

 rounded at apex ; striae feebly impressed, punctures quite coarse toward the base, 

 those of the interstaces finer. Pro- and mososterna rugosely punctate ; metastcr- 

 num moderately closely and strongly punctate throughout, the punctures coarser 

 laterally. First ventral distinctly but more sparsely punctate, the following seg- 

 ments finely and still more sparsely punctured. Middle coxae separated by rather 

 less than half the coxal width. Metasternum a little longer than the first ven- 

 tral segment. Legs moderate. (PI. V, fig. 51). 



Male. — Front and middle tibiae subsinuate and finely mucronate within at the 

 apex ; fifth ventral but little longer than the fourth, and with a small transverse 

 apical impression. 



Female. — Tibiae simple; fifth ventral relatively longer and scarcely impressed. 



Length 1.8 -2.2 mm. 



Hab. — A cosmopolitan species, of which I have seen specimens 

 from Massachusetts, Pennsylvania, Illinois, Michigan, New Mexico 

 and California. 



Belon mentions Nebraska — doubtless on the supposition that 

 Say's octodentata is a synonym Say's description is very brief and 

 would tit tolerably well almost any Corticaria, and while the 

 synonymy established is probably not very well founded, it has so 

 long been accepted that it would best remain so without strong 

 reasons for making a change. 



In addition to one undoubtedly genuine example of serrata taken 

 at Pasadena, I have in my collection specimens from So. California 

 (Pomona and San Diego) which I have provisionally placed with 

 serrata, though from certain small but apparently constant differ- 

 ences I strongly suspect they will prove to be distinct. 



