58 Mr. David Sharp on the 
toto pubescente, segmentibus basalibus medio minus e\d- 
denter angulatis, segmento anali omnino ecarinato. Long. 
12 lin. ; lat. 5—5^ lin. 
Mas, tarsis anterioribus apicem versus leviter dilatatis, 
unguiculis sat elongatis magis curvatis. 
This species belongs to a group differing materially from 
H. piceus and its allies by the entirely pubescent abdomen ; 
the species of the group form a gradual passage to the genus 
Temnopierus of Solier. The outlines of this insect are 
more continuous than in piceus: the maxillary palpi have 
the apical joint shorter than in piceus, and a little truncate at 
the extremity : the sculptm*e of the elytra does not become 
more distinct towards the extremity : the extreme apex of 
the elytra is not truncate, but in each it is just a little 
separately rounded, and the suture has a minute denticle. 
The sternal keel is strongly channelled, and projects back- 
wards nearly as far as the hind margin of the third ab- 
dominal segment. The segments of the abdomen, except 
the apical one, are a little carinate, or rather angulate, in 
the middle. The legs are pitchy black ; the hind femora 
sometimes reddish. 
Rare ; found at Ipongi, near Nagasaki, in paddy fields. 
I possess a very closely allied species from Mantchuria, 
and some other allied species from the Philippines ; these 
latter have the abdominal segments in the middle fur- 
nished with some sparing set^e. 
31. Hydrochares qffinis, n. sp. Ovatus, sat convexus, 
niger, nitidus, palpis, antennis pedibusque rufo-testaceis, 
his femoribus basi nigris ; abdominis segmentis lateribus 
rufo-maculatis, femoribus posterioribus subtus Itevigatis. 
Long. 8^ lin. ; lat. 4^ lin. 
Closely allied to our European species carahoides and 
Jlavipes ; it is of the same size and form as H. carahoides, 
and has the punctuation of the upper surface similar, but 
it is distinguished therefrom by the red legs, and the 
impunctate hind femora ; fi'om //. Jlavipes it is distin- 
guished only by its larger size and broader form, and 
by the fact that in H. affinis the stria3 of the elytra are 
quite distinct, though very fine, whereas they are very 
nearly absent m Jlavipes. 
I have seen only two specimens of this species ; one 
of them, very soft and immatui'e, has the upper surface 
olivaceous, the other is black. 
Found in a pond at Hiogo. 
