There are a lot of no name nymphs out there. It is simple enough that you, or a friend if you don't tie could tie up a bunch in a hurry. I too think it is fox dubbing with guard hairs left in and a copper wire rib . A little chubby. . Crest bugs will often have a material pulled back over the top from rear to front. Is there a reason you need the name...or just want to know what to ask for?