Rhynchophorous Coleoptera of Japan. 105 
with humeral angles rounded-rectangular, sides straight but sub- 
divergent to apex, which is rather abruptly and broadly rounded 
and inconspicuously carinate below; surface very convex with 
scarcely impressed irregular stria of large shallow punctures and 
long coarse pubescence, especially at apex, interstices finely 
punctured in irregular double rows, declivity very convex, with 
first interstice widened, impressed and finely tuberculate, the second 
very strongly, the rest less strongly tuberculate. 
‘The largest Japanese species of the genus; very like 
X. rubricollis, Hichh., in colour and in the completely 
asperate prothorax, but very much larger, and with the 
elytral interstices punctured in double instead of single 
rows. ‘the prothorax is flattened in front, a feature not 
found in other species with a short subglobose prothorax. 
Xyleborus vubricollis, Kichh. 
Hichh., Scol. Jap., p. 202; Rat. Tom., p. 330. 
No further examples taken. 
Xyleborus apicalis, sp. n. 
Fem. Oblonga, subnitida, longius pilosa, piceo-nigra, antennis 
pedibusque ferrugineo-testaceis ; prothorace orbiculato, transverso, 
margine antico tuberculato, disco transverse elevato, postice sub- 
tiliter punctato, margine basali hirto; elytris prothorace, sesqui 
longioribus, lineato-punctatis, interstitiis irregulariter punctatis, 
setosis, ad apicem convexe declivibus, praeter suturam impressis, 
interstitio 20 in summa declivitate obtuse spinato, 30 elevato, 
tuberculato. Long. 3 mm. 
One specimen, without locality. 
Oblong, pitchy black with antenne and legs reddish testaceous. 
Head finely reticulate, front with scattered strong punctures, thinly 
hairy, mouth ciliate. Prothorax transverse, truncate at base, basal 
angles obtusely rounded, sides and apex rounded, the latter more 
strongly and tuberculate ; surface with a median transverse 
elevation, anteriorly exasperate, posteriorly with fine scattered 
aciculate punctures, with long pubescence scattered at sides and 
apex, denser along basal margin. Scutellum triangular, piceous. 
Elytra rather narrower at base than greatest width of prothorax, 
and one-half longer, humeral angles obtuse, sides rounded from 
middle to apex, which is somewhat obtuse ; surface cylindrical at 
base, with rows of punctures, very fine at base becoming strong 
