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Species Rhopalomyia pedicellata

What is this? More goldenrod fauna - Rhopalomyia pedicellata Rhopalomyia pedicellata Rhopalomyia pedicellata Pedicelled galls on Euthamia graminifolia - Rhopalomyia pedicellata - female Pedicelled galls on Euthamia graminifolia - Rhopalomyia pedicellata - female Rhopalomyia pedicellata Rhopalomyia pedicellata Rhopalomyia pedicellata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Diptera (Flies)
No Taxon ("Nematocera" (Non-Brachycera))
Infraorder Bibionomorpha (Gnats, Gall Midges, and March Flies)
Superfamily Sciaroidea (Fungus Gnats and Gall Midges)
Family Cecidomyiidae (Gall Midges and Wood Midges)
Subfamily Cecidomyiinae (Gall Midges)
Supertribe Lasiopteridi
Tribe Oligotrophini
Genus Rhopalomyia
Species pedicellata (Rhopalomyia pedicellata)
Synonyms and other taxonomic changes
Cecidomyia euthamiae Stebbins, 1910
Explanation of Names
Author: Felt, 1908
Size
Wing length of male: 2.4 mm; female: 2.2-2.8 mm.
Identification
Adult yellowish-white with dark scales and hairs. Legs covered with fine scales. Pupa orange.
Life Cycle
Usually two generations per year, with adults emerging from June to September.
Remarks
Galls found on stems, leaves or inflorescences of the goldenrod Euthamia graminifolia. They are delicate, slender (14-21 mm long) and possess a pedicel. Gall single chambered, green to reddish purple, with ribs.
R. fusiformae makes a similar gall, without the pedicel.