I've never heard of blackened
cream worms, but after googling that, no. The filarial things that were biting me were tiny barely visible to the eye; usually they were black but occasionally cream colored. Sometimes they would come in pairs. I ran across an article (excerpt from a book) on the internet that described exactly what I had and even had a picture, but I have never been able to find it again and didn't make note of what it was.