Molting discrepancies for P regius

Brachyfan

Arachnobaron
Active Member
Joined
Jun 14, 2019
Messages
317
Hey folks!

I got 2 Phidippus regius slings in October. One molted about a month ago and went from 1/8" to about 1/4" in my estimation. The other hasn't molted yet. They are on the same feeding schedule (about every 3-4 days) and I water them every other day by misting the enclosure with a small paint pump type mister. Food is either fff's or small pinheads. I know they are eating because I have the privilege of watching them hunt :)

I know there isn't much I can do to help the little one and am not overly concerned. But I was wondering if any arachnofans had some idea why it isn't molting? Is it possibly that one is male and the other female?


Cheers! :)
 

Stefan2209

Arachnodemon
Old Timer
Joined
May 7, 2005
Messages
688
Not an unusual observation to my experience. Don't know a definite reason and suspect there may be more than one possible explanation for it. Being one moult apart isn't uncommon and i experienced even differences of up to 4 moults in siblings that were kept under same conditions when i raised larger numbers of slings.
 

Brachyfan

Arachnobaron
Active Member
Joined
Jun 14, 2019
Messages
317
Not an unusual observation to my experience. Don't know a definite reason and suspect there may be more than one possible explanation for it. Being one moult apart isn't uncommon and i experienced even differences of up to 4 moults in siblings that were kept under same conditions when i raised larger numbers of slings.
Thanks for the information!

Cheers
 

Jadestone

Arachnosquire
Joined
Jun 20, 2019
Messages
54
I have the same thing happening with the slings I am raising. Good to know this is normal!
 

mantisfan101

Arachnoprince
Active Member
Joined
Dec 26, 2018
Messages
1,058
I know for sure that for some other species the vast difference in molting times for sac-mates is a way to prevent inbreeding.
 

Stefan2209

Arachnodemon
Old Timer
Joined
May 7, 2005
Messages
688
I know for sure that for some other species the vast difference in molting times for sac-mates is a way to prevent inbreeding.
I've had the same theory, but observed that with some species apparently gender plays no role in this delayed development. So while i still think this may be a possible explanation in some cases, it doesn't seem to be fitting to all species.
 

Brachyfan

Arachnobaron
Active Member
Joined
Jun 14, 2019
Messages
317
Thanks for the responses! The weird thing is that I have been trying to feed the little one more to encourage a molt. No dice so far. But I keep playing the waiting game ;)
 
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