Teeny tiny

Firstly I just want to say a huge thank you for all your comments stars and lovely hearts you left for my dragonfly yesterday, I feel so blessed :-)
Today's offering is a tiny (4mm) masked bee who was sheltering from the cold in an Ox eye daisy flower. I am pretty sure it is Hylaeus hyalinatus , but considering my ability to use keys I could well be wrong! This species is locally common in the South East, and flies from May to July. 
Quite a little sweetie I think.