a male robber fly in the genus efferia on a granite rock in wyoming hunting for prey

efferia entomologist wyoming arachnology biodiversity awareness close conservation daytime ecological study ecology entomological studies entomology fauna geological features granite rock habitat hunting insect anatomy behavior camouflage ecosystem enthusiasts environment identification interactions lifecycle research species local male mountain insects natural details history landscapes nature observation outdoor exploration outdoors prey robber fly rocky ecosystems surfaces terrain wildlife genus perched textured