https://apnews.com/d9dbf5eebfe04b31a76c6babed3a7bd7 > CLARKDALE, Ariz. (AP) — Matt Johnson treks along an Arizona riverbank and picks out a patch of yellow-tinged tamarisks. He sweeps a cloth net across the trees, hoping to scoop up beetles that munch on their evergreen-like leaves. > He counts spiders, ants and leafhoppers among the catch and few beetles or their larvae.