If you're hearing them, they must have been around longer than here. I've mostly been seeing the immature nymph, until lately, now there's some adults. I guess that means the katydid noise will start soon. And the regular green katydid nymphs should be here soon, if they aren't already. But the Red Katydids are just everywhere I look, all over the plants, a few dead ones on the ground...big outbreak! I guess I live in an area that katydids like. And the more vegetation, the more katydids.