Hi, great pics. It looks like Nematodes which are roundworms. They are typically seen in Cattle but do infect people because they are free living and live in the soil, plumpling in your home to pools even with chlorine. Nematodes can be seen with a woods lamp or black light, they can be hard for use toalways see but they are seen well by insects. They want to spread so they make themselves attractive to just about every insect from grain beetles to springtails and even fruitflies and Aphids. I don't know the name of this exact roundworm but I know it is one because I have the same thing.