My mom sent me a couple of pictures of a spider she found in our house, in Brittany, France. This spider, which belongs to the family Pholcidae (cellar spiders), genus Pholcus, brings back memories from home, as I remember seeing these when I was younger. I remember throwing small paper balls in their webs to see if the spider would mistaken them for prey items. Instead, the spider would shake and vibrate in its web. I later found out that this shaking is a defense mechanism which makes the spider look blurry and therefore more difficult to catch.
This spider was surrounded by her offspring, which first looked like small dots in her web:
The second picture shows the same spider and her young, now a little older:
Pholcids are long-legged spiders that hang upside down in tangle webs, which they typically build in dark areas (cellars, caves), but sometimes also in warm areas inside houses.
Do the babies hang out with the momma for a while? Strange!
ReplyDeleteYes-the mom carries her egg cocoon with her for a few days. When the babies hatch, they stay close to the cocoon for a couple of days, then disperse in the web and stay there until they are ready to leave the web :)
ReplyDeleteThere is info on the subject here:
http://www.jstor.org/stable/pdfplus/2424853.pdf?acceptTC=true