Posted by Tony Irwin on 10-09-2017 16:02
#2
I don't think this is a parasite or an infection - it looks more like something has stuck to the face. Before you start dissection, try washing the head in water or alcohol or acetone. If it's stuck on with sugar, then the water should shift it, if it's some sort of resin, then the alcohol or acetone may work. Either way, I think you will find that the fly is intact and normal under all the gunk.