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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Acalyptratae" » Tephritoidea » Fruit Flies (Tephritidae) » Tephritinae » Dithrycini » Eurosta » Goldenrod Gall Fly (Eurosta solidaginis)
Photo#265144
Goldenrod Round Gall Fly (goldenrod fauna) - Eurosta solidaginis
Copyright © 2009 Beatriz Moisset

Goldenrod Round Gall Fly (goldenrod fauna) - Eurosta solidaginis
Horsham, Montgomery County, Pennsylvania, USA
Size: 6-7 mm.
It hatched from a goldenrod gall that I kept indoors, so I am not putting the date (April 10 or 11) in the field above. Ordinarily they emerge in May or June. I have a few other galls outdoors so I may add other images later. If I am lucky I may find some of the fly parasites, too.
I think that it is a male but I am not sure.
Size from head to abdominal tip: 6-7 mm.


Larva, inside gall           Emerging adult            Galls

These are different individuals, added here for the purpose of illustrating the life cycle.

More on Goldenrod Gall Fauna

Southeastern PA

Higher res. image
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Contributed by Beatriz Moisset on 11 April, 2009 - 11:43am
Last updated 28 January, 2019 - 10:50am

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