They are very unusual looking creatures @Flo54. It would be good if we had a resident entomologist in the community who could identify them for you!
Perhaps @CathM might have an idea - she spends more time in the garden than most people! She also has her own community of gardeners who might have ideas.
Thanks for sharing,
I'm not sure what there are @Flo54 If you do a google search of insects, with a short description, you can usually track them down in 'images'.
I'll have a look through one of my bug books today!
I've had a good look on Google images and can't find anything similar. Mysterious!
Did you have any luck @CathM?
Mosquito lava see http://www.haslemerenaturalhistorysociety.org.uk/mosquitolarva.jpg and http://www.ozanimals.com/Insect/Mosquito/Culicidae%20family/.html Edit: On reflection I am probably wrong; what size are they?