Retractable ladder-like structure in spider's web

Asked July 26, 2017, 8:05 PM EDT

I just found a spider's web with a spun structure in it that looked (and stretched out and back) like a tiny, retractable ladder. What the heck was it? Thanks! A.M. Thompson Washington, DC area

Montgomery County Maryland

3 Responses

The retractable ladder-like structure in a spider web is called a stabilimentum. These are often made by Argiope spiders. It is believed that these help attract prey by reflecting ultraviolet light.

http://bugguide.net/node/view/452749

https://en.wikipedia.org/wiki/Web_decoration

ckc


THANK YOU so much! That is fascinating.

You're welcome. Thank you for the very interesting question!