582 On Aquatic Carnivorous Coleoptcra or Dytiscidce. 



859. Copelatus oblitus, n. sp. — Oblongo-ovalis, nee angustus neque elongatus sat 

 depressus, subnitidus, obsolete punctatus, rufescens, thorace ulytrisque nigricantibns, 

 illis lat.eribus, harum basi et lateribus rufis ; prothoracu ad latera ipsa angustius 

 striguloso ; elytris striis sex sat subtilibu.s integris, (sutuiali basi desinente) 

 aliaque margiiiali brevissima ; coxis posterioribus subtiliter aciculatis. Long. 44, 

 lat. 2i ni.in. 



The male has the front and middle tarsi moderately dilateJ, the front tibiae a 

 little curved at the base, and rather broadly eoiarginate on the inner edge below 

 the knee. I have seen but a singfle individual. 



'O" 



Singapore. C95. 



860. Copelatus indicus, n. sp.- — Oblongo-ovalis, baud elongatus, sat latus, minus 

 nitidus, ferrugineus, supra picescens, prothoracis elytrorumque lateribus ferrugineis; 

 capite subtiliter punctulato; prothorace subtilius punctalato, ad latera anguste 

 striguloso; elytris striis sex integris, profundis, aliaque marginali valde abbreviata; 

 coxis posterioribus breviter sed rude aciculatis. Long. Si, lat. 21 m.m. 



The male has the front and middle tarsi a good deal dilated, the front tibia; are 

 curved at the base, and on their inner edge are bisinuate ; in the female the basal 

 portion of the elytra bears between the striaa numerous, very distinct anastomosing 

 lines ; these become scanty and less extensive towards the sutural portion and are 

 altogether wanting close to the suture. 



India. 690. 



86L Copelatus discoideus, n. sp. — Ovalis, latiusculus, subdepressus, ferrugineus, 

 abdomine, capite thoraceque nigricantibns, 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. 5| , lat. 3 m.m. 



The male has the front and middle tarsi broadly dilated, the front tibice 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 tibiae. 



Mesopotamia. 697. 



862. Copelatus strigulosus, n. sp. — Fern., Ov^alis, 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 



