robber fly in the genus machimus in colorado's natural habitat

camouflaged entomologist machimus afternoon arachnid arachnophobia biodiversity biology blurred background branch close colorado detailed dry ecology ecosystem entomology environment fauna fly grassland habitat hunting insect anatomy behavior invertebrate life cycle macro native natural naturalist nature organism outdoor adventure outdoors predator prey preservation research robber slender solitary species study terrain twig vegetation wildlife genus 39aph39 perched