I was hoping to find out information about a worm we stumbled upon tonight while stargazing. We are located in Pueblo, CO. I noticed several spots of something blue glowing on a patch of semi sand ground where my daughter had just walked. After getting close to investigate I found some type of earth worm. When I picked it up the blue glowing substance transferred to my hands. I gently ran my other hand across the ground to see if there were more, and more glowing spots appeared, but I didn't find and other worms. I came inside to look at the specimen I did find and the closest thing I could find to it is Microscolex phosphoreus. I don't know enough to make a solid ID, but I saw some referances to it being invasive in some countries, so i thought I should ask about it. I have a picture of the worm in the light, but i couldn't get a decent photo of the bioluminescent secretions.