Bonjour !
I send you pictures of another larva found in the decaying husk of a Juglan's nut.
Size : about 5mm
Location : France - Val de marne - Alt : 85 m
Date: 2011 December 04
3rd picture.
We can see more hair than my last thread's pictures http://www.diptera.info/forum/post.php?action=reply&forum_id=4&thread_id=43348&post_id=190028"e=190028
Is it possible to confirm Pachygasterinae ?