Jumping spider egg sac

[JoshDM020]

Heres a question and quite a predicament. I have a jumper (identified here as Maevia inclemens) that i caught outside. She produced a viable sac on the 4th or 5th of july. 4 of them hatched and only two of those survived. This is just some background for this:
Without even being within four feet of a male of ANY species since the first sac, or since i caught her for that matter, she has produced yet another with even more (and maybe slightly bigger?) eggs than the last one. Is it possible she double clutched? Or is this just a "phantom sac"? My mind is absolutely boggled as i didnt even expect the FIRST sac let alone a second.

 

[Ungoliant]

Is it possible she double clutched? Or is this just a "phantom sac"? My mind is absolutely boggled as i didnt even expect the FIRST sac let alone a second.

Many spiders can produce multiple egg sacs from a single pairing. (However, species that can molt after mating generally won't produce another sac after molting unless they mate again, as the spermathacae, which contain the sperm, shed during molting.)

However, jumpers do sometimes produce dud egg sacs, so you'll just have to wait and see.