Teeny tiny bees

[alldigging]

Tiny bees

[Two_Sheds]

I can see your thumb, but not much of the bee. Could it bee Lasioglossum morio?

This is a useful site for insect queries: [IDs] More tiny bees... - Wild About Britain

[alldigging]

I'll get the photos off my phone and see if there's a better one ...

[alldigging]

Not sure these help though.

[mothhawk]

Most of the mining bees are very small, and hairy too.

Gardensafari Mining Bees (Andrena sp.) with lots of pictures

edit - just noticed your better photo - looks like the yellow legged mining bee andrena flavipes



They don't actually have yellow legs, just yellowy hairs on their legs. They make burrows in the ground to lay their eggs, and the larvae overwinter, and don't emerge until the temp is above 20C, so this hot weather should bring them all out.