Gbb sex

EulersK

EulersK

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It's really dark, so it's rough to tell. GBB's are notoriously difficult to ventral sex.

That being said, I'm going with male.
 
elysium

elysium

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Yeah not much of that molt left for me to check unfortunately. I feel like the last picture out of that bunch might be the best one.

I thought female before she molted, but now that ventral doesn't look all too wide and lippy at all, and the book lungs are pretty close as well.

It is a beautiful spider nonetheless.
 
Graves6661

Graves6661

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EulersK said:
It's really dark, so it's rough to tell. GBB's are notoriously difficult to ventral sex.

That being said, I'm going with male.
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I tried to identify my GBB ventrally after it molted and destroyed the exuvia. Though it looked female and even had a friend try to verify and we thought it was female. next molt he hooked out into a male.
 
Graves6661

Graves6661

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EulersK said:
Well, ventral sexing has nothing to do with an exuvia. You were trying to sex by looking for spermatheca.
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Thats correct. What I meant was I tried to sex it using the molt but it was torn to pieces by the time I was able to retrieve it. afterward I tried to ventrally sex it while i could see the underside of the T like pictured above. My inexperienced eyes thought it looked female but later molted into a male.
 
elysium

elysium

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Andrea82 said:
I thought it was going to be a mating thread because of the title...:D
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Well :) if this little fella turns out to be a male, I just may have a female for him and it could turn into a mating thread! Though the female is about the same size as him so not quite sure if the timing will work.
 
KezyGLA

KezyGLA

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The older GBBs get the darker the ventral side turns. Although in the pictures its quite dark, I would expect to see some slightly noticeable girly parts on a 3.5" specimen when sexing ventrally .

I am going with male as my girl is roughly the same size, a bit smaller. She is molt confirmed female and upon ventral inspection has 'lips'.

That is a very nice T you have though. Great colours :)
 
Poec54

Poec54

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elysium said:
Well :) if this little fella turns out to be a male, I just may have a female for him and it could turn into a mating thread! Though the female is about the same size as him so not quite sure if the timing will work.
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No it won't work, unless they're grown extremely slowly. You're already past that point. This isn't like reptiles where you can get a pair of young ones, raise them up and breed them annually. With spiders you get one breeding season with males. At a normal growth rate, I want my females to be at least 2 years older than the males.
 
elysium

elysium

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Poec54 said:
No it won't work, unless they're grown extremely slowly. You're already past that point. This isn't like reptiles where you can get a pair of young ones, raise them up and breed them annually. With spiders you get one breeding season with males. At a normal growth rate, I want my females to be at least 2 years older than the males.
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That's what I suspected based on what I've read on here. I won't be keeping him cooler and starving him just for the sake of breeding so he will likely be sent off when he matures.
 
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