I've been retired for 4 years, but used to see these things edging across the sidewalk of the office building where I worked in north Fort Worth, after heavy rains. Somehow I decided to look them up today. I remembered planaria from either high school or college biology and was able to find your site that way. The things are a little repulsive and reminded me of jars of parasitic roundworms passed around in biology class. Earthworms are considered beneficial to soil around here.
I was able to identify a similar critter, also found on the sidewalks of my former workplace after rain or watering. It was the Brahminen blindsnake, which looks like a small piece of wire. The building was heavily landscaped, with new plants put in and changed each season, so I supposed that's how the things came to north Texas.
Invasive Planarium
I was able to identify a similar critter, also found on the sidewalks of my former workplace after rain or watering. It was the Brahminen blindsnake, which looks like a small piece of wire. The building was heavily landscaped, with new plants put in and changed each season, so I supposed that's how the things came to north Texas.