| MadSci Network: Zoology |
Lindsay, I am in England, and am not familiar with red-backed salamanders, but I sent your question to a friend in Kansas, who is a keen field naturalist. He said he does not think you can sex them in the field, and to further complicate matters, there are many subspecies with very different appearances. The only hope is a reference book specific to your area. Sorry I can't be more helpful. Will Higgs (UK)
Try the links in the MadSci Library for more information on Zoology.