Dasineura epilobii

Abstract: "The gall midge Dasineura epilobii (Löw), a flower gall maker on fireweed, Chamaenerion angustifolium (L.) Scop. (Onagraceae), and other closely related plants, is shown to be a Holarctic species on the basis of anatomical and molecular evidence. The cecidomyiid is redescribed and appears to differ from other congeners by the dearth of microtrichia on the dorsum of the gonostylus and their absence from the apicoventral surface of the gonocoxal lobe."

"The gall midge Dasineura epilobii (Löw), a flower gall maker on fireweed, Chamaenerion angustifolium (L.) Scop. (Onagraceae), and other closely related plants, is shown to be a Holarctic species on the basis of anatomical and molecular evidence." Oviposition occurs at the tip of unopened buds. Galls appear as swollen, unopened flower buds. D. epilobii exhibit multiple generations in a season with the last overwintering in the soil. 

Redescription of Dasineura epilobii (Löw), a Holarctic Gall Midge (Diptera: Cecidomyiidae)