My spider is molting! *** NOW WITH PICS!!! ***

RaiderJ

Diamond Member
Apr 29, 2001
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My spider, Lachesis is molting right now (just flipped over on her back). It takes awhile, but I have a camera set up on a tripod to take pictures of it.

Her last molt she grew from about 3" to 3.5", so she might be around 4" at the end of this molt? For reference, the picture above she's only 2.5" or so (two molts ago).

For those of you who haven't ever seen a spider molt, it's about one of neatest things to watch. Pics when she's all done!!



Update - She finished the molt in pretty good time, about 10 hours from the first picture to the last. Once she hardens up and starts to take food, I'll take a movie of her vs. a cricket. :)

Picture 1) Flipped over and ready to begin the molt.

Picture 2) - Just a small twitch, compare it to the first picture to tell.

Picture 3 - Separated from the old shell. Her fangs are a very different color as well as her joints. She'll get darker over the next few days.

Picture 4 - Fully extracted from the old skin, she can now flip over and remove the old abdomen skin. The molt skin is nearly weightless.

Picture 5 - Her old skin is fully removed and left crumpled on the side.

Picture 6 - Another closeup of her & the old skin


Molt - Here's what her molt looks like. Notice the holes that her new legs had to be pulled through.

Palmed - Here's what she looks like now.

Palmed 2 - A little more stretched out.

Crawling - Crawling along my arm.


Just in case anyone is curious, she's extremely tame and has never bit me or kicked up hairs (although a bit quick on her feet right after her molt).
 

Kasper4christ

Senior member
Sep 29, 2004
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yeah, insects and arachnids don't just grow over time like people do, they have to shed there hard exoskeloton in order to grow.
when there done, usually there all soft until the shell hardens, plus they leave behind there old skin.

how long does it take to happen?
 

Originally posted by: Kasper4christ
yeah, insects and arachnids don't just grow over time like people do, they have to shed there hard exoskeloton in order to grow.
when there done, usually there all soft until the shell hardens, plus they leave behind there old skin.

how long does it take to happen?
THEIR THEIR THEIR DAMNIT!.

Is that spider a baby?
 

RaiderJ

Diamond Member
Apr 29, 2001
7,582
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Originally posted by: Kasper4christ
yeah, insects and arachnids don't just grow over time like people do, they have to shed there hard exoskeloton in order to grow.
when there done, usually there all soft until the shell hardens, plus they leave behind there old skin.

how long does it take to happen?

I'm honestly not sure... both previous molts I was away when they happened. If I had to guess, I'd say in the range of 4-8 hours. After that, she'll need a few days to "harden" up before she can start eating again. A spider's exoskeleton is basically a wet cast after they molt, including their fangs.

Their new shell is soft and pliable inside the older, smaller, hard one (imagine a sleeping bag stuff into a sack). Once they break free of the old skin, their new skin expands to its full size and then hardens.
 

RaiderJ

Diamond Member
Apr 29, 2001
7,582
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Originally posted by: SampSon
Originally posted by: Kasper4christ
yeah, insects and arachnids don't just grow over time like people do, they have to shed there hard exoskeloton in order to grow.
when there done, usually there all soft until the shell hardens, plus they leave behind there old skin.

how long does it take to happen?
THEIR THEIR THEIR DAMNIT!.

Is that spider a baby?

I figure she's about 1-2 years old (picked her up 6 months ago). As a spiderling, she'd have been about 1/2" long. Since it's a female tarantula, she could live 15+ years. I don't think she's reached sexual maturity (odd way to describe a spider), so I guess she's an adolescent?
 

Wow, that's both awesome and extremely creepy at the same time. I had no idea spiders molted.
 
Oct 19, 2000
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Originally posted by: jumpr
Wow, that's both awesome and extremely creepy at the same time. I had no idea spiders molted.
Same here on both sentences. Pretty interesting pics. Thanks for sharing.
 

PricklyPete

Lifer
Sep 17, 2002
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Very cool. Never knew Tarantulas did that. For some reason all the hair made me think that they were different than other spiders.
 

RaiderJ

Diamond Member
Apr 29, 2001
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Originally posted by: J0hnny
Are tarantulas poisonous?

All tarantulas have venom, although some are more potent than others. As a general rule, tarantulas from the eastern parts of the world tend to have stronger venom than those from north/south america. However, tarantula venom is nowhere near as potent as that of say a brown recluse (by a substantial margin).

The main concern if bit would be the mechanical damage caused by the fangs - the venom reaction would probably be less severe than that of a wasp sting.
 

jspeicher

Golden Member
Apr 9, 2003
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great way to start my morning. another pet spyder, out to terrify the rest of the world. ;oainrgpoaengui!