Wednesday, September 24, 2014

Flying into the fangs of danger

Damselflies are nimble predators of other insects, but even predators can become the hunted if they are not careful.  The damselfly pictured below appears to be suspended in flight...

A slender spreadwing damselfly (Lestes rectangularis) hanging in mid-air?
...because it is suspended -- from the spider web it had just flown into.  As usually happens when something becomes tangled in a spider's web, the spider quickly approached to secure its prey.

A spider approaches the damselfly caught in its web.
The damselfly was not about to be taken without a struggle, however.

The damselfly attempts to evade the spider.
By beating its large wings, the damselfly was able to force itself free from the web just in time.  A similar encounter must have occurred between the dragonfly and spider pictured below, but with a very different ending.  Apparently, having strong wings is not always enough to escape becoming a meal for a spider.

A giant lichen spider (Araneus bicentenarius) with a dragonfly in its web.

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