P. audax egg sac


Mar 15, 2011
Hi guys,

It's been a super long time since I have posted on the boards, but I have a problem that I can't seem to get a straight answer and I hope you guys can help. I started collecting jumping spiders last summer and this summer I have managed to round up a gravid P. audax and P. undatus. The undatus just laid her eggs about a week ago, so I know I have time, however, the audax laid her clutch on June 23 and about 5 days ago she basically stopped guarding the nest, is this a sign of a bad sac or am I just becoming impatient? Everything I have seen on Google says two to three weeks for the eggs to hatch then another two weeks for the slings to emerge from the nest. This Friday will make four weeks and the fact mama is just free roaming the enclosure only strengthens my thoughts that the sac is a dud. Now, with all that being said, she has fattened up (and never lost appetite since she laid the eggs) almost to the size when I caught her and she laid the initial sac, so perhaps she is ready to lay a second clutch, which I have heard is common. I just need some guidance from someone that is more familiar with this species, or jumpers in general, because if the consensus is that the sac is a dud and she is just a fatty, I need to rehouse her.

Thanks guys.



Old Timer
Nov 25, 2011
Sounds like a dud sac. She'll make a new one if she has sperm stored up.