On Aquatic Carnivorous Coleoptera or Dytiscide. 565 
810. Copelatus ferrugineus, n. sp.—Ovalis, angustulus, minus depressus, vix 
parallelus, ferrugineus, elytris testaceis; elytris seriebus punctorum sat distinctis, 
et versus apicem strigulis transversis distinctis ; prothorace ad angulos posteriores 
punctis strigulosis parcis. Long. 44, lat. 25 m.m. 
The male has the front and middle tarsi a little dilated. The species is very 
closely allied to C. victoriz, but is a little larger; the most important difference 
seems to be the distinctness of the transverse scratches on the hind part of the 
elytra. 
Australia, (Port Denison). 663. 
811. Copelatus lividus, n. sp.—Ovalis, angustulus, elongatus, minus depressus, 
ferrugineus, elytris testaceis, abdomine pectoreque nigris; elytris seriebus punctorum 
sat distinctis, versus apicem strigulis transversis distinctis ; prothorace ad angulos 
posteriores punctis strigulosis paucis. Long. 52, lat. 23 m.m. 
The male has the front and middle tarsi a little dilated. The species is very 
closely allied to the three preceding, but is larger than any of them. 
Australia, (Adelaide, Melbourne). 664. 
812. Copelatus labratus, n. sp.—em., Ovalis, angustulus, elongatus, minus 
depressus, piceus, capite prothoracisque lateribus plus minusve dilutioribus, 
antennis pedibusque testaceis ; prothorace ad latera strigulis brevibus crebribus, 
disco latius leevigato, medio brevissime canaliculato; elytris seriebus punctorum 
sat distinctis, crebrius punctulatis, sed ad latera in medio haud conspicue longitu- 
dinaliter strigulosis. Long. 52, lat. 23 m.m. 
I have seen only females of this species which differs from those following by 
its smaller size, and by the much diminished development of the short longitudinal 
impressions on the upper surface. 
Australia, (Melbourne, Victoria). 665. 
813. Copelatus simplex, Clk., M.C.—Ovalis, angustus, elongatus, niger, capite 
anterius prothoracisque lateribus rufis, elytris versus latera dilutioribus, antennis 
pedibusque testaceis ; elytris seriebus punctorum minus distinctis, obsolete punctu- 
latis, in femina (cumque thorace) latius longitudinaliter strigulosis. Long. 52, lat. 
22 m.m. 
The male has the front and middle tarsi moderately dilated, and the anterior 
claw on the front feet is thicker than the posterior, but a little before the apex 
becomes rather suddenly slender; the female has the sides of the thorax broadly, 
4D2 
