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. High school Home schooling - Keep learning real - Develop future skills

    May 24, 17 10:45 PM

    High School Home schooling - the importance of developing skills for the future - business, hobbies, passions - not just academics

    Read More

  2. Homeschool Planner Keep on Track

    May 23, 17 07:19 AM

    Homeschool Planner - Keep on Track Home-school Planner is simple, yet stylish. It has all the pages you need for any year, ready to be printed; Now with no dates!

    Read More

  3. Bob Jones Homeschool Curriculum - BJU Press

    May 15, 17 12:24 PM

    Bob Jones homeschool curriculum is engagingly comprehensive, newly updated, and always grounded in Scripture, BJU Press' (Bob Jones) homeschool curriculum has educated thousands. Add your review.

    Read More