8 Psyche [March 
M. sp. 3 
The webs of this species were similar to those of M. sp. 1 in hav- 
ing variable numbers of capture threads (Table 1). The sticky lines 
were not all attached to a non-sticky line at one end, however, but 
rather radiated in several directions from a more or less centrally 
placed thread (Fig. 6). The spider rested on this thread, often break- 
ing one of the capture threads and holding it as described for M. 
simus (Figs, lb and 6). This position was also similar to that of 
M. intempus in that the spider held a non-sticky line behind it and 
a sticky line in front of it. In other cases the spider rested holding 
only the non-sticky thread with both front legs. The sticky threads 
differed from those of other species of Miagrammopes in being 
relatively short (all less than 25 cm) and sticky all the way to the 
lower end. The webs were found at night and were gone the next 
morning. 
M. sp. 4 
Webs of M. sp. 4 had one or two capture threads (invisible until 
powdered or sprayed with water), 20 to 40 cm long each. The cap- 
tured threads were vertical or nearly vertical, but not necessarily 
parallel or in the same plane. Of 9 spiders found during the day, 
three had two capture threads each, three had a single capture 
thread, and three had no capture thread. As in M. simus, the rest- 
ing thread was generally under a leaf and often placed at an angle. 
Spiders with capture threads rested with one leg I holding a vertical 
thread (see Fig. lb) and adjusted the tension both by pulling in the 
resting thread with legs IV and the capture thread with leg I. 
Spiders without capture threads rested in a cryptic position sim- 
ilar to that of M. simus. Often after going into the cryptic posture 
(and particularly when disturbed), the spider bounced up and down 
on the resting thread in a rhythmic motion reminiscent of rocking 
motions of stick insects (Phasmidae). The significance of these 
movements is not known. 
Prey Capture 
We observed in detail prey captures made by four M. simus, two 
M. sp. 1, and one M. intempus. Insects that we gave to the spiders 
as prey included fruitflies (2-3 mm long), moths (3-7 mm long), 
and ants (3-5 mm long). In general, the sequences of prey capture 
behavior were similar, but the spiders moved so rapidly that stop- 
