I've been seeing these galls on Goldenrod,
Solidago sp., a lot this year. Gagne's book, "The Plant-Feeding Gall Midges of North America" keys:
Solidago, bud or flower gall, galls cylindrical-not formed of leaf rosette, modified floret, gall widest at base-fuzzy =
Rhopalomyia anthophilia. I'm most interested in the 2 larvae inside of the one gall I cut open: a fly and a parasitoid wasp perhaps?
Later: emergence of adult flies:
and several parasitoids:
Pteromalidae
Torymidae
Platygastridae
Contributed by
MJ Hatfield on 15 September, 2009 - 9:26pm
Last updated 14 April, 2020 - 11:31am