Guelph, Wellington, Ontario, Canada March 28, 2009 Size: 7.5 mm
Cut-away of a gall exposing the puparium of a Goldenrod Gall Fly and the emergence tunnel formed by the mature larva.
See also the emergence series:
Contributed by Stephen Luk on 14 April, 2009 - 10:58am Last updated 21 April, 2009 - 6:08pm
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