Rhynchophorous Coleoptera of Japan. 109 
Xyleborus obliquecauda, Motsch. 
Phleotrogus obliquecauda, Motsch., Bull. Mosc., 1863, 
is, p. Obs. 
Xyleborus carinipennis, Hichh., Berl. Zeit. 1868, p. 152. 
AX. obliquecauda, Eichh., Rat. Tom., p. 351. 
One specimen, near Yokohama, Oct. 7th, 1881. It 
appears to me identical with examples taken by Mr. 
Lewis in Ceylon, and corresponding to Hichhoff’s descrip- 
tion of X. obliquecauda. The prothorax is a trifle more 
depressed, and the elytra] strie more regular and not 
at all impressed ; but there is no more variation than might 
be expected between specimens from distant localities. 
Xyleborus aquilus, sp. n. 
Fem. Oblonga elongata, nitida, breviter pilosa, ferrugineo- 
picea, antennis pedibusque ferrugineis ; prothorace subqvadrato, 
lateribus et apice singulatim leniter rotundatis, in medio transverse 
gibboso, postice subtiliter disperse punctato; elytris ad apicem 
oblique declivibus, infra subtiliter carinatis, leniter  striato- 
punctatis, striis in declivitate impressis, interstitiis planis uni- 
seriatim setosis, in declivitate convexis, tuberculatis. Long. 3:°2— 
oo mm, 
Six examples taken at Oyayama and Hitoyoshi in 
Kiushiu, one near Kashiwagi. 
Somewhat similar to Y. eurygraphus, Ratz, but narrower and less 
convex, with the prothorax shorter and less evidently quadrate, 
the elytral striz much finer, and the interstices convex at apex, 
more finely and evenly tuberculate. Ferruginous- brown or 
piceous ; head dull, front punctured, thinly pubescent, with an 
obsolete median raised line. Prothorax a little longer than broad, 
truncate at base, with posterior angles obtusely rounded, sides and 
apex separately slightly rounded, antero-lateral angles more 
strongly ; surface gibbous in middle, the elevation transverse but 
short, its anterior half rather finely asperate, the posterior half 
shining, scantily and finely punctured. Scutellum small, triangular, 
shining. Elytra slightly narrower than prothorax at its widest 
part and about one-half longer, humeral angles rounded rect- 
angular, sides parallel to apex then subcircularly rounded and 
margined ; surface slightly convex from base to declivity, which 
is oblique, with fine punctured striz, little or not at all impressed 
before apex, where they are dilated, with a slight outward curve, 
interstices with a single row of setz, flat anteriorly, convex at 
