Rhynchophorous Coleoptera of Japan. 111 
of the remaining interstices. Apical declivity with a shallow 
impression on either side of the suture. Underside ferruginous, 
with abdomen darker, very scantily punctured and pubescent. 
Legs reddish testaceous. 
Xyleborus seriatus, sp. n. 
Fem. Oblonga, cylindrica, subnitida, pilosa, fusco-picea elytris 
dilutioribus, antennis pedibusque rufescentibus ; prothorace longi- 
tudine et latitudine aequali, apice fortiter, lateribus paullo rotundatis, 
supra transverse subelevato, postice subtiliter reticulato et fortiter 
punctato, linea media laevi; elytris ad apicem oblique declivibus, 
declivitate subimpressa subtus haud acute carinata, setis alterne 
longioribus et brevioribus  seriatis, lineato-pr-nctatis, interstitiis 
uniseriatim punctatis versus apicem tuberculatis. Long. 2:5 mm. 
Two examples taken at Nikko and Miyanoshita. 
Oblong, cylindrical, dull piceous with elytra lighter. Head 
finely reticulate, front nearly flat, scantily punctured and pube- 
scent, with an indistinct median longitudinal elevation, mouth 
ciliate, eyes deeply emarginate, antennz testaceous. Prothorax 
as broad as long, truncate at base with posterior angles obtuse, 
sides slightly rounded, in front. strongly rounded to apex ; above 
with an- obtuse transverse elevation in middle, anterior half 
asperate, posterior half finely reticulate and strongly punctured, 
the punctures becoming asperate at sides, with a smooth median 
line, pubescence short and scanty. Scutellum small, rounded, 
piceous. Elytra as wide as prothorax, and more than half as 
long again, truncate at base with humeral angles rounded rect- 
angular, sides parallel to middle, then obliquely and gradually 
rounded to apex ; surface cylindrical to middle, obliquely declivous 
behind, the declivity impressed weakly at sides of suture, with 
inferior margin inflexed but not carinate, with scarcely impressed 
rows of strong close setigerous punctures, the sete very short and 
fine, interstices with a single row of punctures, a little finer and 
less numerous, bearing longer setze, and very finely tuberculate 
for apical half. Legs ferruginous. 
This species resembles X. dryographus, Ratz., but 
the prothorax is shorter and more strongly punctured 
behind. The elytral punctuation is much stronger, and 
the rows of shorter and longer setz are quite distinctive. 
It is allied to Hichhoff’s section + + +, in which the 
prothorax is defined as being cylindrical and oblong; 
but in this species the prothorax is so short, that it will 
not serve to separate it from the insects of section +. 
