Chenopodium (goosefoot)
Stem swelling...?Lasioptera sp.
This gall is reportedly 1β2 cm long. It is known only from the record in Felt (1940). Host: C. ambrosioides. Distr.: unspecified.
β- Raymond J. Gagne: (1989) The plant-feeding gall midges of North AmericaΒ©