Water Beetles of Japan. 53 
sessing some yellow spots ; these spots being — one on each 
elytron near the suture at the base, three large ones at each 
outer margm, and the extremity of the two Aving-cases. 
The reticulation of the upper surface is much more evi- 
dent than in L. testaceus. 
A single specimen of this pretty species has been taken 
at Kobe, by Mr, Le"\vis. 
20. Laccophilus Jlexuosus, Aube. Common at Naga- 
saki. This species Avas described by Aube from India. 
Though I have not seen any individuals from that country, 
I possess specimens fi'om Persia agreeing with Aube's de- 
scription, and these I consider the same species as the 
Japanese individuals. 
21. Laccophilus difficilis, n. sp. Ovalis, pallidus, elytris 
paulo obscurioribus, antennis palpisque apicibus nigro-fuscis; 
prothorace basi medio sat acute producto. Long. 2 lin. 
This species is greatly allied to our European interruptus, 
testaceus, and ohscurus ; the base of the thorax in the middle 
is rather more pointed than in interruptus or testaceus, 
rather less than in ohscurus ; from interruptus its unspotted 
elytra and the dark extremity of the palpi and antennse, 
from testaceu^ the latter character, and its smaller size and 
rather narroA^er form, and from ohscurus its shorter and 
broader form, will also distinguish it ; our European ohscurus 
has the extremity of the palpi and antennae darkened in 
only an obscure degree, while this character is very con- 
spicuous in the Japanese insect. An examination of the 
vmderside shows that the length of the dilated portion of 
the hind coxse is, in proportion to their width, much less 
than in ohscurus. 
Common at Nagasaki. 
22. Laccophilus kohensis, n. sp. Ovalis, testaceus, ely- 
tris obscure fuscis, basi margineque sat distincte testaceo- 
maculatis ; prothoracis basi medio minus acute producto. 
Long. 1| lin. 
This species is smaller than either L. interruptus or 
ohscurus, and is more aUied to the former than the latter ; 
it is somewhat similar in colour to L. interruptus, but the 
spots are not quite so distinctly limited, and the angle of 
the base of the thorax is just a little more acute. The much 
less acute angle of the base of the thorax, the much shorter 
