133 



Sp. 18. Ovatus. — Now of the genus Hyphidrus 

 of Illiger ; the species are few in number, not more 

 than ten appearing in our European Cabinets ; 

 hitherto I believe it has not been found in the New 

 World, it may however be expected to occur there ; 

 its geographical range extends over Europe and 

 Asia, and some of the African isles. I am not 

 aware of any known species having been obtained 

 from the African Continent. 



Sp. 21. Bimaculatus. — This insect, I find, on refe- 

 rence to the Linnean Cabinet, is only a variety of 

 Phaleria Cadaverina. 



Gyrinus, Linneus. 



As only two species are recorded in the Systema 

 Naturae of Linneus. I shall defer my remarks on 

 the genera and species till we come to the Fabrician 

 Gyrinidse. 



