REVISION OF THE GENUS PHLOEOSINUS—-BLACKMAN ADdl 
lateral calli nearly lacking; hairs fine and short, fairly abundant but 
inconspicuous. 
Elytra wider than pronotum, about 1.82 times as long as wide, 
widest at about middle; sides subparallel and nearly straight (feebly 
arcuate) on anterior ewosthieds, moderately broadiy rounded behind ; 
surface moderately shining; discal striae narrow, strongly impressed 
(slightly coarser than in dameataey punctures sieilh distinct, not close, 
notably larger and striae notably wider on een discal striae mee 
so strongly outcurved near base as in dentatus; interspaces wide (not 
so wide as in dentatus), nearly flat, densely, rather finely, confusedly 
granulate, with larger granules becoming uniseriate on posterior 
disk; hairs rather abundant, short, fine, rather conspicuous. Decliv- 
ity (pl. 41, fig. 22) with first and third interspaces as wide as on 
disk, strongly convex, with numerous, crowded, coarse, black, blunt- 
pointed serrations (more numerous, coarser, and with the ends not 
so sharp as in dentatus) ; second interspace as wide as third but 
narrower than on disk, nearly flat, shining, devoid of granules or 
serrations except for one or two near apex, but with fine punctures; 
fifth to ninth interspaces each with several rather coarse, blunt serra- 
tions; all interspaces with rather numerous short hairs, none of them 
scalelike. Mesosternum nearly flat, the anterior portion not precip1- 
tous, only feebly oblique. 
Female (from holotype).—Similar to male in general habitus; 
frons wider between eyes than in male, about 0.66 as long as wide, 
convex, weakly impressed between upper angles of eyes, strongly, 
closely granulate-punctuate, with a rather weak median carina on 
lower half; elytral declivity (pl. 41, fig. 23) with first and third 
interspaces more strongly convex than second, weakly serrate (more 
weakly than in dentatus), second interspace with only a few vestigial 
serrations or granules (sometimes less numerous and smaller than in 
dentatus). 
This species is closely allied to dentatus Say but differs as follows: 
The frontal rectangle is narrower in the male. The pronotal punc- 
tures are slightly coarser and closer. The elytral striae are slightly 
wider than in dentaius and not so strongly outcurved near the base. 
The discal interspaces are slightly narrower. The serrations on the 
second and third interspaces of the male are more numerous, coarser, 
and blunter. The second declivital interspace of the female has 
smaller and fewer (vestigial) serrations or granules than in dentatus. 
Ly pe locality—Columbus, Miss. 
Host.—T axodium distichum (L.) L. C. Rich. 
Type material—Holotype and five paratypes, U.S.N.M. No. 55410. 
