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Hi,

At beginning of july i have been up in Retezat National Park. In a lot of places i have found galls (rolled leaf) on Dryopteris filix-mas.
From what i have read he causer is an anthomiid Chirosia betuleti.

Are also other species associated with this fern? I ask this because from what i seen on Fauna Europaea is not present in Romania (the closest country in which is signaled is Slovakia) ( http://www.faunae...on1=129180 ).

If is this species and not yet signaled will be good o have some adults i think, how to proceed for this?

First photo: the gall

Thanks for the help,
cosmln

[EDIT]: title updated

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a more general aspect

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one larva inside the gall.

p.s.
Paul, i think this is better to go in other section of the forum, larva..., sorry for that

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This is particularly interesting to me. If you pick the galls when the larvae are fully grown, place the galls on some damp sand in a container. You might be lucky and the adults will emerge (?when).

I will name any adult males if you send them to me.

There are no recorded Chirosia species bred from Dryopteris, but perhaps this name is a synonym of another genus? C. betuleti has been bred from Athyrium

If you send me your email address by private message I will send you a PDF on a paper I wrote on Chirosia griseifrons and Athyrium

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Hi Michael ,

Now i have checked he identity of the fern, indeed this is Anthyrium filix-femina.

I'm not sure if the thing with Dryopteris is not from the book with British Galls (the book is it at office and i will not be there until next week to check).

Hope that this next week i will go up in the mountain and if still find larva i will collect some and hopping to have some adults.

I will send you a PM with my email address.

Also i don't know if you have seen this post: http://www.dipter...d_id=14630 , maybe you are interested in anthomyiid? Maybe i will not be able to put all in one place, maybe some will go at Nikita.

thanks a lot for your help,
cosmln