50 Mr. David Sharp on the 
pictipennis. The colour, both of the upper and under 
surfaces, varies according to the degree of maturity. 
Four specimens from Hiogo, under stones in the water- 
coiu'ses. 
13. Agabus japonicus, n. sp. Ex affinitate A. palu- 
dosi : ovalis, supra nitidus, Itevis, capite prothoraceque 
nigro-jeneis, elytris fuscis: subtus niger. Long. 3^ — 
3| lin. 
Mas, tarsis anticis idx dilatatis, unguicidis fequalibus 
simplicibus; tarsis posterioribus articulis tribus basalibus 
subtus minus dense setigeris. 
This species is closely allied to A. paludosus ; it is 
broader and more rounded at the sides, the thorax is of 
an obscure brassy colour, and not paler at the sides, and 
its hind angles are more acute ; the impressed points on 
the elytra are finer. 
The underside is black, with the epipleurfe pale at the 
base. The antenute and palpi are reddish-yellow, the 
four front legs are reddish, with the femora infiiscate ; the 
femora and tibife of the hind legs are blackish, their tarsi 
reddish. The structural characters of the male are similar 
to those oi paludosus. 
Hiogo and Nagasaki. 
14. Agabus dissimilis, n. sp. Ex affinitate A. spilop- 
teri, Germ. — Late ovalis, depressus, niger, nitidus, subti- 
lissime reticulatus ; capite, prothoracis macula ad angulum 
anteriorem, antennis, pedibusque quatuor anticis rufo- 
testaceis ; pedibus posterioribus piceis. Long. 2^ lin. ; 
lat. 1^ Kn. 
Variat, elytris plus minusve testaceo-ornatis. 
This insect has more the form of a large Laccophilus 
than of an Agabus. It is allied to A. spilopterus, Germ. 
It is very shining, the upper surface is finely reticulate, 
the head is yellowish, the part adjacent to the inner mar- 
gin of the eye broadly marked with black. The thorax 
has a large yellowish mark at the front angle. The elytra 
are also marked with yellow, but apparently in a very 
variable degree ; there being either a narrow yellow trans- 
verse band close to the base ; or this is absent, and re- 
placed by one or two small pale dots ; just in fr'ont of the 
apex there is always a yellow spot, and the parts towards 
the sides and the extremity show also some obscure and 
