COST Action 833 on mange and myiasis in livestock ran from 15 January 1998 to 14 January 2003. The need for research on these parasitic problems was apparent and the response of the veterinary and scientific community working in this field throughout Europe and beyond was enthusiastic and immediate. In two working groups, one on myiasis and the other on mange, scientists from 18 European countries have been cooperating since early 1998. This volume presents all the contributions made during the final annual conference at the University of Bari, Italy, in September 2002.