robber flies in the genus stenopogon and promachus fighting in colorado

adaptation colorado landscapes promachus arachnids arthropods biodiversity conservation daytime ecological role ecosystem dynamics entomological study entomology environmental balance fauna flight flora food chain grass ground dwellers hunting techniques insect behavior ecology interactions insectivorous insects life cycle mating morphology natural habitat selection nature outdoor activity predation predators predatory prey robber flies sand species stenopogon terrestrial wilderness wildlife observation genus fighting pair