582 On Aquatic Carnivorous Coleoptera ov Dytiscide. 
859. Copelatus oblitus, n. sp.—Oblongo-ovalis, nec angustus neque elongatus sat 
depressus, subnitidus, obsolete punctatus, rufescens, thorace elytrisque nigricantibus, 
illis lateribus, harum basi et lateribus rufis; prothorace ad latera ipsa angustius 
striguloso ; elytris striis sex sat subtilibus integris, (suturali basi desinente) 
aliaque marginali brevissima ; coxis posterioribus subtiliter aciculatis. Long. 4%, 
lat. 23 m.m. 
The male has the front and middle tarsi moderately dilated, the front tibice a 
little curved at the base, and rather broadly emarginate on the inner edge below 
the knee. I have seen but a single individual. 
: ne 
Singapore. 695. 
860. Copelatus indicus, n. sp.—Obiongo-ovalis, haud elongatus, sat latus, minus 
nitidus, ferrugineus, supra picescens, prothoracis elytrorumque lateribus ferrugineis; 
capite subtiliter punctulato; prothorace subtilius punctulato, ad latera anguste 
striguloso; elytris striis sex integris, profundis, aliaque marginali valde abbreviata ; 
coxis posterioribus breviter sed rude aciculatis. Long. 53, lat. 2§ m.m. 
The male has the front and middle tarsi a good deal dilated, the front tibize are 
curved at the basc, and on their inner edge are bisinuate ; in the female the basal 
portion of the elytra bears between the strize numerous, very distinct anastomosing 
lines ; these become scanty and less extensive towards the sutural portion and are 
altogether wanting close to the suture. 
India. 696. 
561. Copelatus discoideus, n. sp.—Ovalis, latiusculus, subdepressus, ferrugineus, 
abdomine, capite thoraceque nigricantibus, elytris testaceis, plaga magna discoidali 
nigra, capite anterius prothoraceque ad latera ferrugineis ; capite subtiliter sed 
evidenter punctato ; thorace ad latera punctato-strigoso ; elytris striis sex integris sat 
profundis, suturali multo subtiliore, aliaque marginali brevissima ; coxis posteriori- 
bus indistincte aciculatis. Long. 52, lat. 3 m.m. 
The male has the front and middle tarsi broadly dilated, the front tibiz: much 
curved at the base, the basal portion being slender and bisinuate on the inner edge ; 
the female differs only by its simple tarsi and tibiee. 
Mesopotamia. 697. 
862. Copelatus strigulosus, n. sp.—Fem., Ovalis, latiusculus, sat elongatus, piceus, 
capite anterius prothoraceque ad latera dilutioribus, elytris ad apicem (vix ad basin) 
antennis pedibusque testaceis; thorace ad latera et basi utrinque densissime 
striguloso ; elytris lineis anastomozantibus undique excepte in partem quintam 
