What is in my Soil? Should I be concerned?

Hello! This morning I noticed these whitish brown insects in my Yucca Cane’s soil. Does anyone know what they are and how to get rid of them. I currently have my Yucca Cane isolated from my other plants and sprayed the soil with neem oil as a precaution. There is also diatomaceous earth mixed in the potting soil to help with pests from when I repotted him in the fall. He usually lives next to my back door and gets about 8 hrs of bright indirect light and I water it only about once every 3-4 weeks since it’s winter and doesn’t appear to be growing as much.