Few of us fail to marvel at the beauty of the web
structures created by spiders. None is more perfectly engineered than that of
the Orb Weaver (Family Epeiridae). Regular in form; these flat, slightly curved sheets of sticky
filaments with the zigzag pattern in the center of the web are seldom seen
today. Once, Orb weavers were a common sight in vacant fields and hedgerows to
those who worked the farm lands or hiked among tall grasses.
The brilliant yellow and black agiope is a large plump
Orb Weaver spider. Its long front legs are tipped with feet that have three
claws. Argiopes spend much of the time hanging upside down in the center of its
web across the zigzag bands. These bands strengthen the net webs. The argiope
will hold several of the elastic sticky lines of the web when it is in its
corner retreat; vibrations are felt when an insect is entangled in the web. The
argiope will quickly dart toward the snared prey. Wrapped in a silken shroud,
the prey may be devoured on the spot or stored for a later feast.
Spiders consume vast amounts of insects. Some, such as
the Orb Weavers, are used in instinctive behavior research.
Look for the Orb Weaver webs on dew covered grasses
during early morning walks. You will soon discover the intriguing world of a few
of the smallest forms of Michigan's Watchable Wildlife.