308 Mr. H. W. Bates on the 
behind, rectangular thorax. I doubt whether it can be 
retained in the genus Dromhts, as the terminal joints of 
the palpi taper to a point, and the ligula large, convex, 
and horny; the legs are similar to those o^ Dromius, the 
claws pectinated, and the mentum furnished with a tooth. 
D. optinuis, n. sp. 
D. fasciato (Dej.) afHnis, at multo major. Elongatus, 
subangustus, fuscus ; antennis, partibus oris, pedibus, 
thoracisque margine latcrali testaceo-fulvis ; eljtris tcsta- 
ceo fulvis, vittct sutiirali basi et postice dilatata, altera intra- 
marginali, fasciaque angulata pone medium fuscis. 
Long. 2^ lin. 
Nagasaki ; imder bark of various trees. 
Larger and relatively longer, and more parallel-sided 
than D. fasciatus. The thorax is quadrate, much broader 
than long, moderately narrowed behind, with obtuse, 
altliough distinct hind angles ; the disk is generally brown 
with the margins pale, but sometimes one colour blends 
into the other. The elytra are elongate, the stria? broad 
and shallow ; the brown sutural vitta has a triangular 
dilatation over the scutellum, and an oblong one at two- 
thirds the length, after which it terminates; the lateral 
vitta is of moderately equal width from the humeral to the 
apical angle, leaving the lateral rim always fulvous ; the 
fascia is very variable in width and in intensity of colour, 
but it always forms an angle, projecting forward almost as 
in D. Sigma. 
Apristus striatus, Motschulsky, Coleop. d. 1. Siberie, p. 63. 
Hiogo ; luider sediment in dried beds of rivers. Nerts- 
chinsk, E. Siberia (Motsch.). 
The Japanese specimens agree very well with the de- 
tailed description above quoted ; but the size is a little 
larger, If — 2 lin., instead of H — If lin., a discrejiancy 
tlie less to be regarded as Motschulsky's measurements 
almost always err by defect. The forehead has numerous 
punctures and faint longitudinal strife, and central depres- 
sion sometimes large, and communicating Avith the lateral 
furrows. The species ditfers from the European A. reti- 
culatus (Schaum) in scarcely anything except the deep 
strire, or rather sulci of the elytra ; these sulci are punc- 
tured on the sides in Japanese specimens. It much re- 
sembles A. suhsulcatus, but the thorax is of a different 
