What is this?

[GoodMorels]

My pet grass spider, (A fun friend in the genus Agelenopsis) created this while I was at work today. She’s never webbed anything like it. I’ve had her for four months now, could she has been holding onto eggs that whole time? Her enclosure isn’t quite baby proof at the moment.

 

[viper69]

Egg sac from what I see

 

[birdonfire]

Could be infertile.

 

[GoodMorels]

Could be infertile.

That would make more sense to me, I suppose we’ll find out. They’re native to my region, so I’m not incredibly worried

 

[The Snark]

I’ve had her for four months now, could she has been holding onto eggs that whole time?

No, but they can retain sperm many months or even years. I think Geometricus is the poster girl here. One mating and she can toss out around 15 sacs in as little as three or four weeks on out to a year or more.

 

[GoodMorels]

No, but they can retain sperm many months or even years. I think Geometricus is the poster girl here. One mating and she can toss out around 15 sacs in as little as three or four weeks on out to a year or more.

That’s pretty whack, crazy cool

 

[darkness975]

That’s pretty whack, crazy cool

Only if its the native Latrodectus.

 

[The Snark]

Only if its the native Latrodectus

@GoodMorels Meaning Geometricus is an invasive in many areas, out competing the native latrodectus species.

 

[GoodMorels]

My pet grass spider, (A fun friend in the genus Agelenopsis) created this while I was at work today. She’s never webbed anything like it. I’ve had her for four months now, could she has been holding onto eggs that whole time? Her enclosure isn’t quite baby proof at the moment.

Update! She lost interest in the egg sac, so I went ahead and dissected it. Crushed the eggs to be sure they were dead, but I’m fairly certain these guys were never fertile. Thanks for the help!