|
| |
|
|
|
|
||||
| Home Help Feedback Subscriptions Archive Search Table of Contents | ||||
|
Fig. 10. Gumfooted lines consist of two pairs of silk fibers that are coated with an
aggregate silk glue along their lower 5-15 mm. One pair of fibers has a larger
diameter and runs continuously from the sheet to the substrate. The second
pair of smaller diameter silk fibers is cut by the spiders just above an
attachment point to the larger fibers. Thus, the `foot' of the line consists
of four fibers that are viscid (glue covered) along their base and are then
dry until the attachment point, while the bulk of the gumfoot is two dry,
large diameter fibers.
|
