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Photo#251081
Tiny Diving Beetle - Liodessus affinis
Copyright © 2009 Stephen Luk

Tiny Diving Beetle - Liodessus affinis
Eramosa River, Guelph, Wellington, Ontario, Canada
January 13, 2009
Size: 1.5 mm
In detritus. Don't know where to start on this tiny one.
Contributed by Stephen Luk on 29 January, 2009 - 9:40am
Last updated 30 January, 2009 - 10:13am

Thanks to you two.
I've moved it to species page since L. affinis is most likely.
… Stephen Luk, 30 January, 2009 - 10:13am

some kind of '-dessus'
like, Bi~ affinis, for example
… v belov, 29 January, 2009 - 9:56am

tribe Bidessini for sure
several possible genera...will check the keys later...
… Tim Loh, 29 January, 2009 - 9:54am

 
Liodessus
Most likely L. affinis, based on range alone; a nearly identical species, L. noviaffinis also occurs in the east but is more widespread down south (the only records for that species in Canada were in Nova Scotia). Other than that, they can only be reliably separated via examination of male genitalia.
… Tim Loh, 29 January, 2009 - 7:38pm

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