a holopogon robber fly perched on a branch in colorado

abdomen antennae asilidae resting thorax animal background branch closeup colorado diptera entomology eye fauna fly grass green haltere halteres head holopogon hover hunter insect invertebrate land leg legs macro meadow mouth mouthparts natural nature outstretched perch predator predatory prey proboscis robber flies stalk twig white wild wildlife wing wings