Fluffy flying insect

[smmarkvard]

I was walking my dog on a road with lots of trees. when i noticed a huge amount of these flying light blue insects and i'm wondering what there are?

[Adam Cotton]

Please see collector-secret.proboards.com/thread/1293/identification-requests and respond if you would like some assistance identifying this.

Adam.

[isidro]

Very hard to tell with a photo of a hand non viewable at larger size and the insects almost at natural size. But I guess it's an aphid of subfamily Pemphiginae, that tend to be woolly.