I saw this giant bug this morning, while Papa and I were out on the ranch. This bug was well over 1.5" long and quite colorful. She was in a hurry and moving rapidly. I looked it up later, and found that the one I saw was female and without wings, thus a nymph. I also read: "Giant Mesquite Bugs feed only on the sap, tender leaves, and green
seed pods of mesquite trees, and are only found in areas with plenty
of these trees. Giant Mesquite Bugs are especially common in southern Arizona because of abundant Velvet Mesquites. Giant Mesquite Bugs do not do any significant damage to mesquite trees."