a female robber fly in the genus efferia perched on the ground among natural textures

efferia ground arthropod backcountry biodiversity studies bug camouflage close colorado conservation details ecological research ecology ecosystem balance entomology environment environmental science exploration fauna flora grass habitat habitats identification insect behavior invertebrate living creatures macro microhabitat natural naturalist nature trails observation outdoor activity robber fly rocky terrain soil species summer texture wildlife female genus perched textures closeup view camouflaged