a female robber fly in the genus efferia perched among rocks and vegetation in wyoming

activity adaptation animal arthropod balance behavior biodiversity biomes bristles characteristics close colorado communities creature desert dwelling dynamics ecological ecosystem efferia entomology environment environmental exploration fauna female flora fly genus grassland ground habitat identification insect insects interaction life microhabitat morphology native natural nature observation observing orange outdoor outdoors perched plant research resting robber rocks rocky setting small species study terrain vegetation wildlife wyoming