Rhynchophorous Coleoptera of Japan. 95 
surface cylindrical, nearly vertically declivous at apex, but convex, 
with regular impressed rows of strong punctures dilated after the 
base, sutural stria more deeply impressed and widened behind, 
interstices flat with a single row of fine punctures, replaced by 
small setigerous tubercles on declivity. Underside and legs 
testaceous, the former scantily punctured and pubescent. 
Similar to immature examples of D. villosus, Fabr., 
but twice as small, with the prothorax not asperate 
behind, with scantier pubescence, and the elytral in- 
terstices more distinctly defined. 
Dryocetes nubilus, sp. n. 
Oblongus, subnitidus, parce longius pilosus, piceo-niger, an- 
tennis pedibusque testaceis ; prothorace oblongo-ovali anterius 
rugulis transversis exasperato, posterius subnitido, rugulose punc- 
tuto; elytris ad apicem oblique declivibus, subtiliter lineato- 
punctatis, stria suturali non aut vix impressa, interstitiis post 
medium uniseriatim pilosis. Long, 1-7—2-2 mm. 
Ten specimens, Kiga, Suyama. 
Oblong, lighter, or darker piceous-brown. Front of head 
scantily punctured, weakly impressed at sides, and with a median 
subelevated longitudinal line, its pubescence long and thin, mouth 
ciliate ; antennze testaceous, with sutures of club straight. Pro- 
thorax a little longer than broad, its base truncate, basal angles 
obtusely rounded, sides rounded, slightly behind, more strongly 
towards apex ; surface somewhat depressed, asperate in front with 
concentric lines of transverse tubercles, becoming weaker behind 
and replaced at base by rugose punctures, except over an indistinct 
median smooth line; sides and apex with long scanty hairs. Scutel- 
lum rather large, rounded, shining. Elytra rather wider than 
prothorax at base, and one half longer, truncate at base, with 
shoulders nearly rectangular, sides parallel to near apex, then 
gradually rounded ; apex not obtuse ; surface cylindrical, obliquely 
and convexly declivous for posterior third, with rows of fine 
punctures, the sutural stria alone with a trace of impression in 
some specimens ; interstices subrugose, with a single row of finer 
setigerous punctures, the setee becoming longer and more con- 
spicuous towards apex. Underside testaceous-brown, nearly 
glabrous and impunctate. Legs reddish testaceous. 
Distinguishable from D. alni, Georg., by its smaller 
size, the weaker punctuation of the base of the thorax and 
elytra, and the absence of the lateral impressions and 
