We have never seen these before. Our guess is that they either grow under ground and the wet weather this year forced them up or they have a many year, maybe decade long cycle. I think they are too big to climb plant stems but must eat roots while underground and vegetation on ground level.
Roy
Roy Miller - Cute looking immature larval reptile.
For me, the color is the strong point of this photo. If that’s the “cute” larvae that eats my tomato plants, it’s no longer cute!