Rufous Net Casting Spider

by Marianne
(Sydney, Australia)

Net-casting spiders (family Deinopidae)

Net-casting spiders (family Deinopidae)

While out gardening in our front garden last week we saw a wonderful net casting spider. It is amazing how it is holding the net ready to drop it on any small insect which looks like a tasty lunch.
Just amazing!



The prey-catching method of net-casting spiders is unique. At night they build a rectangular, postage-stamp-sized web, made with wool-like, entangling silk threads. They then carefully aim a few small splodges of droppings, which are a bright white colour, onto the surface just below them, such as a leaf or branch. They use these spots as a prey-sensing system. The net-casters hang head-down holding the corners of their snare-web in their front legs. When they see a wandering insect pass over the white target spots, they lunge downwards with the snare and entangle the victim in it. The spiders then wrap extra silk around their struggling catch and bite it, injecting poison and digestive enzymes. Net-casting spiders catch beetles, ants, crickets, spiders and even moths in flight.

Comments for Rufous Net Casting Spider

Average Rating starstarstarstar

Click here to add your own comments

Apr 05, 2010
Rating
starstarstarstar
Net caster on the net!
by: Brian

I have never heard of the Rufous net Casting spider and am impressed by your photo. Catching it casting would have garnered you a 5 star rating.

Click here to add your own comments

Join in and write your own page! It's easy to do. How? Simply click here to return to Nature Journal On-line.

Recent Articles

  1. Teaching Descriptive Writing -modeling literature based lesson plans

    Dec 13, 18 01:04 AM

    Create writers by teaching descriptive writing using modeling. Examine and copy the great authors descriptive writing styles - as a way to teach and develop your own.

    Read More

  2. Home School Math - How to Teach Math using curriculum, games, books

    Dec 12, 18 08:08 PM

    Don't be overwhelmed in teaching Home school math - Read about spiral / horizontal math curriculum, learn how to teach math in different ways, worksheets, skill list, software, math games and math liv…

    Read More

  3. Free Printable Writing Paper, Lined writing paper, Dotted Third paper

    Nov 30, 18 03:47 AM

    Looking for free printable writing paper for you and your children to use? The lined paper comes in four different formats.

    Read More