And why is it I remember cicadas EVERY summer in Texas?
Like you, I think I confused cicadas with katydids.
Some species are annual which grow for years underground, but some mature and emerge every year. Then some are periodical where almost all come out at the same time.
We have some of the annual ones every year, but this is the big year for the 17 year attack.
It looks like you don't get very many of the 13- or 17-year swarms of them in Texas.