REVISION OF THE GENUS PHLOEOSINUS—BLACKMAN 401 
Usualiy larger species (2.0 to 4.5 mm. long); mesosternum 
ranging from flat to moderately oblique between coxne; vesti- 
ture of pronotum and elytra usually scanty except sometimes 
on declivity_-____ ee malas Ly ah Ss Pectilter, oe Vlad ea Ee Se rete ele Es 16 
. Frons deeply concave in male; elytral vestiture rather fine and 
abundant on disk and sides; declivity with second inter- 
space narrower than first or third, vestiture abundart on 
ANE MeChVitalieinterspA Geshe sk «vale tee tae eh NS aN yee Fey h Sede ees 7 
Frons rather shallowly concave in male; elytral vestiture rather 
coarse and scanty on disk and sides; declivity with second 
interspace scarcely narrower than first or third, with obsoles- 
cent punctures and without vestiture, first and third inter- 
Spacesiwithidense: white (scalessttsats saasiis ihe re eels Se ee 15 
. Elytra of male more than 1.30 times as long as wide, inter- 
spaces not twice as wide as Striae; first and third interspaces 
on declivity with coarse, short, stout, closely placed, re- 
CULV CO SERGE DOI Gis abies its tid ieee ie) tat reea ered Weta fabee 9 as ety call Mey alee 8 
Hlytra of male less than 1.30 times as long as wide (except in 
antennatus), interspaces more than twice as wide 4s striae; 
first and third interspaces on declivity sparsely armed with 
either rather small or with slender, sharp serrations________-_______-- 9 
. Frons of male rather narrowly concave, with distinct, elevated 
earina on lower half; frons of female granulate-punctate 
throughout; second declivital interspace much narrower than 
third; California, in Libocedrus, Juniperus, and Cupressus. 
hoppingi Swaine (p. 411) 
Frons of male widely concave, carina reduced to tooth on 
epistoma; frons of female punctate above, feebly granulate 
at sides only; second declivital interspace only slightly nar- 
rower than third; Arizona to Texas and Wyoming, in 
SUID CHM Se AE ee UE eS Ee ee eli el Ue hoferi, new species (p. 412) 
. Declivital serrations on first and third interspaces rather 
blunt in male, somewhat smaller in female; declivity in both 
male and female with dense coat of yellowish scalelike 
Declivital serrations on first and third interspaces in males 
sparse, large to moderately large, with apices sharp, much 
smaller in females; hairs moderately abundant in female at 
. Notably larger (2.15 to 2.8 mm. long); frons of male deeply 
and widely concave, with carina moderately elevated on less 
than lower half; elytral striae narrow, with small, ratker 
close punctures; Washington, in Chamaecyparis nootkaten- 
878 u (amas) aS UC yy a keeni, new species (p. 414) 
Notably smaller (1.6 to 2.0 mm. long) ; frontal concavity of male 
moderately deep, rather narrow, with strong, sharply elevated 
carina on more than lower half; elytral striae moderately 
narrow, strial punctures larger and not closely spaced ; declivi- 
taleserratlOonSeSii a] eam a re een eee ee ee eee 11 
. Frons of male granulate-punctate at sides and above concavity ; 
pronotum deeply, closely, moderately coarsely punctured, with 
short, fine hairs; California and Oregon, in Libocedrus decur- 
PONG OT CVn are ae a an pre ete ran antennatus Swaine (p. 415) 
