998 On Aquatic Carnivorous Coleoptera or Dytiscide. 
Hydroporus minutissimus : 5 
Hydroporus mixtus 
Hydroporus mixtus (1 (Motsch 5) Mun. Cat, = 
Hydroporus modestus 
Hydroporus meestus 6 
Hydroporus mestus, Walk. 
Hydroporus monilicornis Sahl. 
Hydroporus monticola, Sharp = 
Hydroporus morio 
Hydroporus multiguttatus, Regt, 
Hydroporus multimaculatus 
Hydroporus musicus 
Hydroporus mutatus, Har. 
Hydroporus nicobaricus, Redt. 
Hydroporus nebulosus 
Hydroporus neglectus 
Hydroporus neuter 
Hydroporus nevadensis . 
Hydroporus nigellus, Mann. = 
Hydroporus niger 
Hydroporus niger, Say 
Hydroporus nigriceps ; 
Hydroporus nigricollis, Fairm, = 
Hydroporusnigrita, Mun, Cat. = 
Hydroporus nigritarsis . 
Hydroporus nigroadumbratus 
Hydroporus nigrolineatus, Mun. Cat. = 
Hydroporus nivalis 
Hydroporus notabilis, Lec. 
Hydroporus notatus 
Hydroporus novemlineatus 
Hydroporus nubilus 
Hydroporus nudatus, Say 
Hydroporus obesus, Lec. = 
Hydroporus oblitus 
Hydroporus oblongus ¢ 0 
Hydroporus obscurellus, Lee. = . 0 
Hydroporus obscuripes, Mun. Cat. = 
Hydroporus obscurus 
Hydroporus obscurus, Bab. 
Hydroporus obsoletus 
Hydroporus obtusipennis, Sahl. 
Hydroporus occidentalis . 
Hydroporus occultus —. 
Hydroporus octopustulatus, Mun. Cat. = 
Hydroporus opacus, Wehncke. 
Hydroporus opatrinus 
Hydroporus oppositus, Say 
Hydroporus orientalis (v. p. 973) 
Hy droporus orientalis, Clk. 
Hydroporus ovoideus 
Hydroporus pallidulus 
Hydroporus palustris, Mun. Cat. 
Hydroporus parallelogrammus, Nee Cat. = 
Hydroporus parallelus, Sharp = 
Hydroporus parvicollis . 
Hydroporus patruelis 
Hydroporus pectoralis, Motsch. . 
Hydroporus peltatus 
Hydroporus penicillatus . 
Hydroporus pentagrammus 
Hydroporus perplexus 
Hydroporus persimilis, Crotch ° 
Hydroporus picatus, Kirb. 0 : 
267 
520 
1332 
627 
456 
1399 
1400 
555 
598 
1401 
365 
390 
1402 
1403 
426 
603 
566 
633 
597 
622 
1404 
576 
569 
561 
543 
372 
419 
591 
1405 
600 
417 
403 
1406 
533 
639 
646 
318 
1333 
563 
1407 
635 
1408 
553 
552 
1294 
1409 
455 
Hydroporus piceus, Steph. 
Hydroporus picicornis : 
Hydroporus picipes, Mun. Cat. 
Hydroporus pictodes : 
Hydroporus pictus, Mun. Cat. = 
Hydroporus piochardi, Regt. 
Hydroporus planatus, Mann. 
Hydroporus planus, Mun. Cat. = 
Hydroporus platynotus . 
Hydroporus plicipennis . 
Hydroporus politus, Macl. 
Hydroporus polonicus 
Hydvoporus porcatus 
Hydroporus portmanni, Clk. 
Hydroporus productus Fairm. 
Hydr oporus proximus 
Hydroporus pseudogeminus, Reet. 
Hydroporus puberulus, Lec. 
Hydroporus pubescens, Mun. Cat. = 
Hydroporus pudicus, Clk. 0 . 
Hydroporus pulcher 6 
Hydroporus pulcher, Motsch. 
Hydroporus pulicarius 
Hydroporus pullus 
Hydroporus pumilus 
Hydroporus punctatus 
Hydroporus pustulatus . 
Hydroporus pyrenzus 
Hydroporus quinquelineatus, Mun. Cat. = 
Hy droporus regularis 
Hydroporus republicanus 6 
Hydroporus reticulatus, Mun. Cat. = 
Hydroporus revelieri 
Hydroporus rivalis, Mun. Cat. = 
Hydroporus roffi, Clk. 
Hydroporus rotundatus, Lec. 
Hydroporus rubescens 
Hydroporus rubripes 
Hydroporus ruficeps 
Hydroporus ruficeps, Boh. = 
Hydroporus rufifrons, Mun. Cat. = 
Hydroporus rufilabris 6 
Hydroporus rufinasus, Mann. 
Hydroporus rufipes, Moraw. = 
Hydroporus rufulus, Aubé =. 
Hydroporus rufulus (Motsch.) Mun. Cat, = 
Hydroporus rusticus 
Hydroporus sabaudus, Fauy. 
Hydroporus saginatus 
Hydroporus sanmarki, Sahl, = 
Hydroporus sansi, Aubé. 
Hydroporus sardus 
Hydroporus saucius 0 6 ° 
Fydroporus scalesianus. 
Hydroporus scitulus, Lee. 
Hydroporus scrutator  . 6 ° 
Hydroporus scythus, Schaum 
Hydroporus sedilloti, Regt. 
Hydroporus sellatus, Lec. : . 
Hydroporus semiclusus Walk. . 5 
Hydroporus seminulum, Lec. 
Hydroporus semirufus . ° 
Hydroporus septentrionalis, Mun. Cat. = 
Hydroporus sericatus, Say 5 ° 
