119 



Fabrician Species. 



Country. 



Genera of Authors. 



77. 



Insequalis 



England 



Hygrotus, Stephens. 



78. 



Minutus 



England 



Laccophilus, Leach. 



79. 



Pygmaeus 



Denmark 



Hydroporus, Clairville. 



80. 



Reticulatus 



England 



Hygrotus, Stephens. 



81. 



Crassicornis 



Germany 



Noterus, Clairville. 



82. 



Flavipes 



England 



Hydroporus, Clairville. 



83. 



Pictus 



Germany 



Hygrotus, Stephens. 



84. 



Nigrita 



England 



Hydroporus, Clairville. 



85. 



Pusillus 



Italy 



Hydroporus, Clairville. 



86. 



Parvulus 



Denmark 



Hygrotus, Stephens 1 



GYRINUS of Linneus and Fabricius. 

 GYRINID^, Leach. 



1. Natator 



2. Bicolor 



3. Australis 



4. Americanus 



5. Micans 



6. Premorsus 



7. Hastatus 



8. Spinosus 



9. Striatus 



10. Minutus 



11. Nitidulus 



12. Strigosus 



13. Runpes 



14. Villosus 



England 

 Switzerland 

 New Holland 

 N. America 

 Guinea 

 Sierra Leone 

 American Isles 

 Coromandel 

 Barbary 

 England 

 East Indies 

 New Holland 

 New Holland 

 Germany 



Gyrinus of Authors. 



Enhydrus, Laporte. 



Euhydrus ? 

 Dineutes, MacLeay. 

 Dineutes ? 



Dineutes, MacLeay. 

 Gyrinus of Authors. 



Gyrinus ? 

 Gyrinus, Linneus. 

 Potamobius, Leach. 



ELOPHORUS, Fabricius. 

 HELOPHORID^l, Leach. 



1. 



Aquaticus 



England 



Helophorus of Authors. 



2. 



Nubilus 



Germany 







3. 



Elongatus 



England 



Hydrochus, Germar. 



4. 



Humeralis 



Germany 



Helophorus ? 



5. 



Flavipes 



Switzerland 



Helophorus, of Authors 



0. 



Crenatus 



England 



Hydrochus, Germar. 



7. 



Pygmoeus 



England 



Ochthebius, Leach. 



8. 



Minimus 



England 



Hydrjena, Kugellan. 



