KSU Entomology has been getting reports of Green June beetle larvae being noticed crawling around right now.
You can read more about it here:
http://blogs.k-state.edu/kansasbugs/2019/10/10/green-june-beetle-larvae/
June beetles are described in more detail in this publication:
https://www.bookstore.ksre.ksu.edu/pubs/mf2901.pdf
As stated in that publication, “Although Phyllophaga grubs can be recovered from most turf venues, populations rarely are sufficient to cause visible damage.”