Photo Adventures with Curiosity and Learning


March 14, 2009: Argyrodes flavescens antics

Argyrodes flavescens invade webs of Nephila. Here is Nephila pilipes chasing prey

mar 14 5397 chase prey

Captured

mar 14 5398 capture

Having dinner

mar 14 5399 dinner

More dinner

mar 14 5401 dinner

Fishished

mar 14 5402 finished

Then home to the hunting position

mar 14 5409 home

Her ventral side

mar 14 5416 home ventral

Lurking in the Nephila web are several Argyrodes flavescens - here is one manipulating a couple of circumferential strands - probably to harvest the glue drops. Note that she has linked to the two left circumferential strands forming a triangle. Amazingly intelligent behavior - how is this programmed?

Argyrodes

mar 14 5206 argyrodes

Here are the two strands that she appears to be linking to another strand

mar 14 5208 harvesting glue

More of the acrobatics of linking strands and subsequent harvesting

mar 14 5211 argyrodes harvesting

Here it appears she is pulling strands from the right to join the other strands

mar 14 5225 argyrodes harvesteing

And here pulling the bundle to the left

mar 14 5233 argyrodes eating

A rare look at the drag line silk from the Argyrodes

mar 14 5240 argyrodes dragline

Meanwhile in another sector of the web - this little one appears tangled in a maze of silk

mar 14 5443 web maze

Sort of consolidating

mar 14 5472 harvesting maze

More acrobatics

mar 14 5478 web maze

Stretching exercises

mar 14 5515 stretch

Here she is stealing a fly, put up for storage by the hostess Nephila

mar 14 5528 stealing fly

In this sequence you can see her pull strands, gathering up slack silk on the left and consolidating it for glue harvesting, I suppose

mar 14 5550 pulling

A better view of the glue drops on a strand and slack silk held by her 1st left leg (while the 2nd left leg holds the strand with glue

mar 14 5553 consolidating

THere the glue drop strand is hanging slightly as she pulls on the upper left strand - and at the same time, pulls toward herslef the slack strand

mar 14 5554 consolidating

Here she is manipulating the glue drop strand

mar 14 5556 consolidating

Apparently attaching it to the slack clump of silk

mar 14 5557 consolidating

Here the left-most strand is now tight as is the stand just above it

mar 14 5558 consolidating

Now she appears to be manipulating the clump of loose silk

mar 14 5561 harvesting

And she continues consolidating and tensioning strands

mar 14 5567 consolidating strands

Here is similar exercise

mar 14 5577 tangle strands

Next step

mar 14 5583 glue strands

Manipulating slack strands

mar 14 5600 slack strands

Here connecting and tensioning the strands

mar 14 5620 glue drops

Two Argyrodes

mar 14 5682 2 argyrodes

A grasshopper - face

mar 14 5421 ghopper face

From the side

mar 14 5425 ghopper side

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This work is licensed under a Creative Commons License.

C. Frank Starmer

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