400 
Psyche 
[September-December 
Fig. 1. Female Lycosa rabida (with prey) on artificial foliage. 
the afternoon (on most days, 1300-1500), and recorded the duration 
of time each spider spent on the ground vs. the foliage. At ^-hr 
intervals we also measured the height of those spiders that were on 
the foliage. After completing this phase of our study, we observed 
and filmed prey capture and wrapping by spiders on the artificial 
foliage. Analysis of these and other films was aided by use of a 
Bell & Howell Super 8 mm Multi-motion projector. 
Field observations were made on L. rabida during daylight hours 
(usually 1300-1500), and during both day (1300-1500) and night 
(2030-2200) conditions on L. punctulata. The spiders were detected 
at a distance and their location within the habitat noted. By ap- 
proaching carefully, we were able to film undisturbed L. rabida in 
the field. 
Prey-wrapping Behavior 
Whereas individuals of S. crassipes did not use silk after prey 
capture, those of L. rabida and, to a lesser extent, L. punctulata 
did so. In the latter two species, silk was not used to immobilize 
the prey, since wrapping began after the prey had ceased most of its 
struggling, usually several min after capture (Table 1). 
