“Swallowtail Butterfly and Green Bee” by LYLE GLASS.

A yellow swallowtail butterfly lands on a thistle flower to feed while a agapostemon sweat bee is already feeding on the sweet nectar. the agapostemon bee is usually metallic green and has a banded abdomen.

Adjusted in PSE7.

Photographed in Theodore Roosevelt National Park, South Unit, Medora, North Dakota on 7-11-2012 at 6:03 a.m.