Two unknown insects

Trying to figure out two insects that I saw today.

A hornet chewing on a wooden pole at Gilbert Road Community Garden. Asked for help here. [Edit: I think it may be a male Bald-faced Hornet, Dolichovespula maculata, gathering fibers for nest-making.]

I am pretty sure this is a Sand Wasp (Bembix spp.), possibly a Bembix americana, but just to make sure.