Slender Mining Bee (Lasioglossum (Evylaeus) calceatum)
This year I've started to notice the real diversity in the bees that visit the garden, from the huge bombus, to the tiny yellow-faced bees. These aren't much bigger than the yellow-faced themselves, and have shown a real attraction to the rudbeckias that are still all in flower. Very cute little bees indeed. This is a male, as there are no pollen baskets, and the female has less red on the abdomen.