High Quality Content by WIKIPEDIA articles! LepreCon is an annual science fiction convention with an emphasis on art held in and around Phoenix, Arizona usually in May around Mother`s Day weekend. It is the second oldest science fiction convention in Arizona. It is sponsored by Leprecon, Inc., an Arizona non-profit corporation. Leprecon 37 will be held from May 6-8, 2011, at the Tempe Mission Palms in Tempe, Arizona.