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Polyphylla decemlineata
They are relatively large in size, some growing to sizes as large as 1.25 inches (3 cm) or more. As in other members of this genus, the males have large distinctive antennae consisting of several lamellate plates, which they close up when threatened. The antennae are used to detect pheromones emitted by the females.[2] The wing covers (elytra) have four long white stripes and one short stripe each. The underside of the thorax is covered with brownish hairs. This beetle does not bite.
Nice spotting! It must get warmer there a lot faster than here in New Mexico... June beetles don't come out in large numbers here until July.