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 with language arts lesson plans based on literature

    Aug 01, 17 10:41 PM

    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. Charlotte Mason Education | What are the 3 Instruments of Education?

    Aug 01, 17 09:47 PM

    Charlotte Mason Education is an atmosphere, a discipline, a life. What the Charlotte Mason Motto means.

    Read More

  3. Aesop Fables - Homeschooling Printable Ebooks to use as Language Arts Lessons

    Aug 01, 17 12:43 AM

    Aesop Fables are an excellent starting point for homeschool Language Arts lesson plans based on Literature. New Aesop's Fable Bundle available. printables to enhance fables for kids.

    Read More