University of Guelph, Guelph, Wellington, Ontario, Canada Size: 1.5 mm
Very many of these under a flowerpot in a greenhouse. I don't know if they are introduced or not. Photographed 3/20/2009.
Contributed by Stephen Luk on 29 March, 2009 - 1:39pm Last updated 7 December, 2010 - 11:28am
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