a female robber fly in the genus efferia insect perched on a rocky surface in wyoming

efferia entomologist pollination rocky surface wyoming animal behavior arthropods biodiversity colorful insects conservation ecology studies ecosystem entomology environmental science fauna female field flying habitat insect adaptation anatomy characteristics finding food identification lifecycle morphology observation survival wings world life cycle microhabitat natural beauty environment history nature outdoor exploration robber fly terrain solitary species summer texture wildlife genus perched textured rock