A Large Robber Fly in the Tribe Stenopogonini Perched in Dense Vegetation in Northern Colorado
An Orange and Brown Large Robber Fly Tribe Stenopogonini (Member of Family Asilidae) Perched on Vegetation Waiting for Prey in Eastern Colorado
Very Large Ospriocerus aeacus Black Robber Fly with Bright Orange Abdomen Perched on Vegetation in Eastern Colorado
