This tiny male wedge-shaped beetle Macrosiagon limbata* has his feathery antennae out into the air, hoping to catch the scent of a female.
She, like him, is probably on top of a flowering plant, grazing on pollen. Eventually she will lay eggs by the flowers. They will hatch into tiny grubs, who wait by the flowers for wasps that come to drink nectar. When they wasp lands, they climb on board, and ride her back to her nest, disembarking when she lays her own eggs. The beetle larva feeds within the body of the developing wasp larva. Nature is awesome.
* "Large jawed, bordered."