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Species Eurosta solidaginis - Goldenrod Gall Fly

Space Alien - Goldenrod Gall Fly emergence - Eurosta solidaginis - female Eurosta solidaginis? - Eurosta solidaginis Goldenrod spherical gall - Eurosta solidaginis Goldenrod Gall Fly - Eurosta solidaginis Eurosta solidaginis Fruit fly  - Eurosta solidaginis - female Galls - Eurosta solidaginis Eurosta solidaginis - female
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Acalyptratae")
Superfamily Tephritoidea
Family Tephritidae (Fruit Flies)
Subfamily Tephritinae
Tribe Dithrycini
Genus Eurosta
Species solidaginis (Goldenrod Gall Fly)
Other Common Names
Goldenrod Spherical Gall Fly, Tephritid Fly
Explanation of Names
Eurosta solidaginis (Fitch 1855)
Specific epithet refers to the host plant, Solidago (Goldenrod)
Numbers
2 subspecies: one eastern (nominate) and one western (E. s. fascipennis)(1)
Size
7-9 mm
Identification
Galls distinctive
Range
Much of North America, from Northwest Territory south to British Columbia, Kansas, Carolinas.
Season
Apr-May
Life Cycle
Larvae form round galls on the stem of certain Solidago spp., feed there, and pupate in early spring; adults emerge in April-May(2)
Remarks
Some parasitoids listed at(3)
See Also
Goldenrod Elliptical-Gall Moth: similar gall, same host:
Works Cited
1.Handbook of the Fruit Flies (Diptera: Tephritidae) of America North of Mexico
Richard H. Foote, P. L. Blanc, Allen L. Norrbom. 1993. Cornell University Press (Comstock Publishing).
2.Guide to Observing Insect Lives
Donald W. Stokes. 1983. Little, Brown, and Company.
3.From goldenrod round galls