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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Nematocera" (Non-Brachycera) » Gnats, Gall Midges, and March Flies (Bibionomorpha) » Fungus Gnats and Gall Midges (Sciaroidea) » Gall Midges and Wood Midges (Cecidomyiidae) » Gall Midges (Cecidomyiinae) » Lasiopteridi » Oligotrophini » Rhopalomyia » Goldenrod Bunch Gall (Rhopalomyia solidaginis)
Photo#231634
Goldenrod bunch gall - Rhopalomyia solidaginis
Copyright © 2008 Beatriz Moisset

Goldenrod bunch gall - Rhopalomyia solidaginis
Pennypack Restoration Trust, Montgomery County, Pennsylvania, USA
October 3, 2008
Size: 1 or 2 mm.?
The bunch gall is made by the fly. I found several galls occupied by these beetles in a couple of different occasions and in different places, so it must be a common thing. Did the beetles do all the damage?
The gall maker
More of these beetles. There are also some caterpillars found often in the goldenrod bunch galls; that is why the gall maker is considered an "ecosystem engineer", it creates habitats for other species.

More on goldenrod galls fauna.
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Contributed by Beatriz Moisset on 6 October, 2008 - 4:34pm
Last updated 17 February, 2019 - 2:26pm

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