Dasineura pteridis Diptera: Cecidomyiidae - gall midge
Dasineura pteridis

Photographs on Pteridum aquilinum, Bracken

Host:
Pteridum aquilinum

Distinctly thickened downward roll on one or both sides of pinnule. Gall becoming brown or black with a single larva in each roll (white becoming pinky-orange when mature). Several generations from June onwards.

Similar: Dasineura pteridicola; inconspicuous downward fold, pinnule barely thickened. One or more larvae, white when mature. Single generation, early summer. Needs rearing and expert examination to confirm


Dasineura pteridis

Dasineura pteridis

Dasineura pteridis
Dasineura pteridis
Lytchett Matravers, Dorset. September 2017

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