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Goldenrod Gall Fly puparium - Eurosta solidaginis

Goldenrod Gall Fly puparium - Eurosta solidaginis
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: