This summer I was fishing for crappie and met a fellow who had lots of fish that he caught on a simple fly. I have seen this fly in a book but can't seem to find it. Perhaps one of you can help.

Description: Wet fly hook, about a 10, Body Black Chenille and two white rubber legs in the middle of the fly.
that was all.

Thanks in advance. Tim

PS - he said he bought the flies in a store.