Supplemental diets containing yeast, sucrose, and soy powder enhance the survivorship, growth, and development of prey-limited cursorial spiders

► Supplemental diet mixture (SDM) contained sucrose, yeast and toasted soy flour. ► Spiders fed only sucrose or SDM persisted as first instar nymphs for weeks. ► When provided with SDM, spiders could mature when fed only 60-100 moth eggs. ► Binary mixes of soy flour + sucrose and baker's yeast + sucrose were effective diets. ► SDM may be used to mass rear cursorial spiders or conserve them in crops.