REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 417 
fortiter constricto, subtiliter punctato, pube lutea obtecto; elytris 
subtiliter punctato-striatis, interstitiis punculatis, pilus luteis, squam- 
maeformis ornatis, 3° versus apicem subampliato.—Long. 134 mill. 
Yucatan.” 
The writer has not seen a specimen of this species, but from the 
rather general description he believes that it is a male and is fairly 
closely related to antennatus, as shown by the frontal characters and 
by the declivity ornamented with scalelike hairs, and by inconspic- 
uous serrations (not mentioned in description). 
PHLOEOSINUS SPINOSUS, new species 
PLATE 38, Fiaures 5, 6 
Male.—Black, with posterior part of elytra reddish brown; 1.94 
mm. long, about 2.09 times as long as wide. 
Frons black, shining, broad between eyes, frontal rectangle about 
0.74 as long as wide; epistomal lobe rather short; central portion 
deeply, rather broadly concave, surface brightly shining and impunc- 
tate in median area, finely punctate at each side, median carina re- 
duced to a small tooth just above epistomal margin; sides of frons 
finely, closely granulate-punctate, not so closely punctured and with- 
out granules in median area above; pubescence semierect, short, in- 
conspicuous except in profile. Eye elongate, nearly half divided by a 
broad emargination on inner margin. Antenna with club about 1.85 
times as long as wide, first suture slightly oblique, second more 
strongly oblique and sinuate, third very strongly oblique. 
Pronotum about 1.20 times as wide as long, sides strongly and 
nearly regularly arcuate on posterior two-thirds, widest slightly be- 
hind middle, strongly constricted in anterior third, broadly rounded 
in front; surface shining, moderately impressed just behind anterior 
margin; rather finely, deeply, rather closely punctured, interstices 
not granulate on disk, very slightly roughened at sides; median line 
not elevated; vestiture short and fine, visible but not conspicuous. 
Elytra slightly wider than pronotum, about 1.26 times as long as 
wide; sides subparallel on anterior two-thirds, moderately rounded 
behind, with ends of spines extending beyond outline; surface shining, 
piceous brown, with posterior third reddish brown and extreme base 
slightly reddish; striae moderately impressed, much narrower than 
interspaces, punctures fine, moderately close, shallow; interspaces 
much wider than striae, moderately convex, granulate-punctate, uni- 
seriately asperate on posterior two-thirds, the asperities on first and 
alternate interspaces becoming much higher, sharper, and spinelike 
posteriorly, pubescence short, fine, and inconspicuous anteriorly, 
stouter behind (pl. 38, fig. 5). Declivity with first and third 
interspaces strongly convex, with rather close, fine punctures, each 
