On Aquatic Carnivorous Coleoptera or Dytiscida. 313 
163. Laccophilus clarki, (Wehncke), n. sp.—Ovalis, minus convexus, angustus, 
nitidus, testaceus, prothorace anterius et posterius in medio nigricante, elytris 
lineis undulatis fere integris. Long. 32, lat. vix 2 m.m. 
This is a small narrow species, with the dark marks on the elytra largely 
developed and distinct ; they consist of thick lines waved at their edges, and only 
separated by very narrow yellow marks, and are indeed here and there quite 
confluent; near the base and beyond the middle in some places the black marks 
are somewhat reduced however so as to give rise to a slight appearance of a pale 
spot or two near the base and of a pale fascia beyond the middle ; the under 
surface is more or less infuscate. The male has the front and middle tarsi a good 
deal incrassate, and the apical ventral segment somewhat produced in the middle 
and sinuate on each side; in the female the hind part of the segment forms a 
broad much produced lobe, and the extreme sides are slightly prominent, so that 
close to the sides the hind margin appears deeply sinuate. 
Australia ; Rockhampton, Gayndah, Moreton Bay. 584. 
164. Laccophilus quadrimaculatus, (Wehncke) n. sp.—Ovalis, convexus, nitidus, 
testaceus, niger, capite, thorace, antennis pedibusque quatuor anterioribus testaceis, 
thorace basi breviter nigro; elytris in medio macula parva laterali, aliaque post 
‘medium majore rufis, apice piceo, pedibus posterioribus piceis. Long. 37, m.m., 
lat 13 m.m. . 
I have seen only a single female of this easily distinguished species, the apical 
ventral segment is prolonged so as to be very oblique on each side. 
Australia (Wehncke). 623. 
165. Laccophilus lituratus,n. sp.—Ovalis, sat latus, subdepressus, nitidus, testaceus, 
elytris fuscis, fascia sub-basali conspicua, maculisque duabus ad latera, testaceis. 
Long. 3, lat. 1¢ m.m. 
The elytra are in this species fuscous without trace of irroration or flexuous lines, 
there is a very conspicuous pallid fascia near their base, a pale spot at the side about 
the middle, and a pale spot beyond this which extends further inwards towards the 
suture. The male I do not know; the female has the last ventral segment elongate, 
not at all truncate, and the outline of its hind part at the side a simple curve. 
Siam. 592. 
166. Laccophilus pulicarius, n. sp.—Ovalis, sat latus et convexus, nitidus, 
testaceus, abdomine elytrisque nigricantibus, his faciis duabus transversis, apiceque 
testaceis. Long. (elytrorum) 2 m.m. 
