Black Widow Multiple Egg Sacs?

[RedbackBreeder]

1. My Latrodectus has laid 2 egg sacs in 2 weeks. I heard that Black Widows can store sperm and lay many egg sacs.
Just how often do they lay a new clutch of eggs then? And if you feed it a lot, will it have more eggs?

2. Is every Egg Sac filled with eggs? Do Black widows ever make silken sacs without eggs inside?

 

[Widowman10]

1- they definitely do.
depends on conditions, temperature, and food.
yes, until the sperm starts running out. if egg production drops, you can re-mate her and egg numbers will go back up!

2- i've seen dud eggsacs, so yes/no? not all silken sacs contain good eggs