Rhynchophorous Coleoptera of Japan. 107 
with fine rows of punctures which appear impressed in certain 
lights, interstices rather wide, flattish, each with a row of very fine 
punctures, and behind middle with erect sete arising from slight 
tubercles. Underside brown, punctured, pubescent. Legs tes- 
taceous. 
Closely allied to X. compactus, Hichh., but twice as 
large, with distinct though feebly impressed elytral striae 
and regular rows of hairs on the apical declivity, which 
are confined to the interstices. 
Xyleborus compactus, Hichh. 
Eichh., Scol. Jap., p. 201 ; Rat. Tom., p. 328. 
No further examples taken. The hairs are shorter 
and more depressed at the apex of the elytra than in the 
last species, and arise from the striz as weil as from the 
interstices. 
Xyleborus semi-opacus, Hichh. 
Hichh., Rat. Tom., p. 380. 
Five specimens, Konose, Kioto, Chiuzenji; also at 
Hong-Kong in China (J. J. Walker). 
The type is not in Mr. Lewis’s collection, but the 
Species is unmistakable. In certain lights rows of 
punctures can be seen on the elytra, but they are not at 
all clear, and cannot be confounded with the distinct 
lines occurring in most of the genus. 
Xyleborus concisus, sp. Nn. 
Oblongus, nitidus, ferrugineus, prothorace et elytris ad apices 
infuscatis, breviter ac parce pilosus ; prothorace transverso lateribus 
leniter, apice fortius rotundato et crenato, supra in medio obtuse 
transverse elevato, postice discrete punctato ; elytris latitudine a 
basi crescentibus, lateribus rectis, apice rotundato, striato-punctatis, 
interstitiis subtilius uniseriatim punctatis, declivitate valde obliqua, 
ante medium incipiente, subconvexa, squamis obtecta, striata. 
Long. 2°4 mm. 
One example, without locality. 
Oblong, ferruginous, with apex of prothorax and elytra slightly 
infuscate. Head piceous, finely reticulate, front subconvex, sparsely 
and strongly punctured towards sides and scantily pubescent, witha 
transverse impression over mouth, above which is a somewhat 
