[Syrphidae] Callicera larvae key

[Bastiaan]

Dear all,

I tried to send an email to Graham Rotheray g.rotheray at nms.ac.uk but it bounced back so I ask it
here as I am looking for the following paper ...

The larva of Callicera spinolae with a key to the larvae of British Callicera species (Diptera,
Syrphidae)  [1994]
Rotheray, G.E. Perry, I. (Royal Museum of Scotland, Chambers Street, Edinburgh, EH1 1JF (United
Kingdom))

... as I found a Callicera larvae here in Brussels in a crack of a fallen fagus tree yesterday. This
crack would have been around 20 meters up from the ground.

Thanks,
Bastiaan