Fly, moth and small snail for id please

[vaughnie]

This fly was common on seaweed on the North Norfolk coast on tuesday. Is it St. Mark's-Fly? It looks similar I think....


I found this (unfortunately deceased) moth in my girlfriends house in Norfolk...a footman of some kind? Not sure if its still idable now its faded...


Finally (and possibly optimistically) a small snail found clinging to a wooden post on the beach at Overstrand, North Norfolk...



Any suggestions gratefully recieved.
Vaughn

[aeshna5]

Moth looks like Dingy Footman + I think snail is a marine one ( not too surprising where you found it!)- a Flat Periwinkle, Littorina littoralis which I used to love finding as a kid!

[oxycera]

fly is some kind of bibionid

[poschiavanus]

Originally Posted by aeshna5

Moth looks like Dingy Footman + I think snail is a marine one ( not too surprising where you found it!)- a Flat Periwinkle, Littorina littoralis which I used to love finding as a kid!

Agree with Dingy Footman, and with Littorina, but I think the spire is too prominent for L. littoralis, which I think is now obtusata. Perhaps the Rough Periwinkle L. saxatalis, which can cope with a wide range of salinity. Mind you this is delving deep into the past when I did Marine Biology evening classes.

For all snails its worth picking them up and getting a photo of the mouth opening and the spire. Shape of the mouth opening, number of turns in the shell etc are useful ID features.

Shame more WABbers don't ask about them.

poschiavanus

[Laurence Clemons]

The fly is most likely a female Dilophus febrilis.

[vaughnie]

Thanks for all your help. Ive labelled the snail as Littorina sp. for now. I'll remember to tip them upside down to photograph them next time...