Latrodectus gestation?

[KUJordan]

Can anyone tell me what the average gestation time is for widows. I just mated one my L. mactans and another one of my L. variolus 5 days ago, so I was just wondering how long I would have to wait for a sac. Thanks for any info!

 

[JPD]

I would say roughly one to three weeks depending on conditions.