96 Mr. Walter F. H. Blandford on the 
elevated suture of the apical declivity. I can see no 
sexual characters, but one example is more elongate, 
with the thorax more distinctly narrowed behind, and the 
median line subelevated. No specimens measure less 
than 2 mm., except one, which is very small (1°7 mm.), 
with the head finely punctured, and without long 
pubescence. It may be distinct, but I can find no 
characters by which it may be separated. 
The three following species differ somewhat in facies 
from Dryocetes proper, but it is not possible to construct 
a new genus for them without dissection, for which more 
material is required. ‘They can be distinguished by the 
shape of the prothorax, which is net uniformly curved 
from base to apex, but is cylindrical at base and 
declivous anteriorly, so as to form an obtuse median 
elevation. Jts anterior half is markedly scabrous, while 
the hinder part is smooth ; but a uniform sculpture of the 
prothorax does not occur in all the species of Dryocetes. 
Kichhoff described one originally as a Dryocetes, but 
afterwards included it, doubtfully, in the genus Taphro- 
rychus. I cannot, however, see adequate grounds for 
this, and prefer to keep it at present in Dryocetes, with 
which the other two species form a connecting link, 
Dryocates mestus, sp. n. 
Oblongus, cylindricus, subnitidus, pilosus, niger, antennis pedi- 
busque testaceis; prothorace aeque lato quam longo, apice rotun- 
dato, tuberculato, supra transverse subgibboso, antice exasperato, 
postice rugose punctato, linea media obsolete elevata; elytris 
lineato-punctatis, stria suturali subimpressa, interstitiis uniseriatim 
subtiliter punctatis et pilosis, ad apicem fortiter declivibus, 
declivitate deplanata, nitida, ad suturam utrinque impressa. Long. 
2°6 mm. 
A single specimen, Nikko. 
Black, cylindrical ; head with front convex, thinly pubescent, 
punctured, with an indistinct elevated longitudinal line ; antenne 
testaceous, club with sutures curved, pilose, basal joint shining, 
equal in length to succeeding joints, apical joint sensitive, pubes- 
cent. Prothorax with length and breadth equal, base truncate, 
basal angles nearly rectangular, sides feebly rounded to near ‘apex, 
then abruptly and broadly rounded, apical margin tuberculate ; 
? 
surface cylindrical at base, declivous at apex, with an indistinct 
