THE CANADIAN ENTOMOLOGIST. 45 



Cymindis borealis Lee. In dry pastures, in July. 



Brachynus americamis Lee. Common under stones along the river, with 

 perplexus Dej. and medius Harris. 

 Having had but little opportunity for the collection of water-beetles, 

 my species are not numerous, and I can say little as to their relative rarity 

 or abundance. As soon as the ice melts I will endeavor to gain a fuller 

 knowledge of our Hydroporini and allied tribes. 



DYTISCID^. 



Hydroporus hybridus Aube. Not rare in the Ottawa in May and Oct. 

 dichrous IMels. One specimen. 

 americamis Aube. One specimen. 

 notabilis Sharp. One specimen. 



HVDROPHILID^. 



Helophorus obscuriis Lee. (var.) One specimen. 

 Hyd7-ochus rjifipes Mels. Common. 

 Hydrobius feminalis Lee. One specimen. 

 Cercyon pygmceiim 111. Rare. 



SILPHID^. 



Hydnobius siibsti-iatus Lee. One specimen in October. Dr. Leconte 



informed me that this beetle was exceedingly rare. 

 Liodes geminata Horn. In fungus. 



SCYDM^NID^. 



A large number of beetles belonging to this, and to the following three 

 or four families, as well as species from many other families, were secured 

 from moss and swamp grass collected in several locahties immediately 

 before the setting in of winter. Although I have only four species 

 belonging to the Scydmaenidae, one of these is considered by Mr. John B. 

 Smith to be perhaps a new species. 



Scydmcenus n. sp. ? Of same size as fatuus Lee, but easily separated 

 from that species by its pale antennae and legs. 



PSELAPHID^, 



Bryaxis Brendelii Horn. Rare. 



puncticollis Lee. One specimen. 

 tomentosa Lee. Very rare. 



