Wolf Spiders vary patch residence time in the presence of prey chemical cues (Araneae: Lycosidae). ABSTRACT: The importance of chemical information in the courtship communication of spiders is well established, but the importance of using prey-produced chemical cues in foraging is less well known. Foraging patch residence time in the presence and absence of cricket chemical substances was measured to determine if Schizocosa ocreata wolf spiders use substratum-borne chemical cues of prey in foraging decisions. Twenty adult female spiders were tested under two treatments: a foraging patch with paper that 100 crickets had walked on for 30 minutes, and a clean paper sheet that served as a control. The duration of time spent on each substratum was recorded and analyzed. Results indicate that spiders spend significantly longer periods of time in patches with chemical cues from crickets over control patches.