Spermathecae Resource Thread

Vanessa

Grammostola Groupie
Joined
Mar 12, 2016
Messages
2,424
At what size should I be starting to look? I have a really good macro lens, which will pick up a lot of detail in a ventral shot, but I think my new one is still too young/small at 1".
 

viper69

ArachnoGod
Old Timer
Joined
Dec 8, 2006
Messages
18,695
At what size should I be starting to look? I have a really good macro lens, which will pick up a lot of detail in a ventral shot, but I think my new one is still too young/small at 1".
Depends on species, some Ts can be easily sexed w/out lens at 1-2". Molt confirmed is the best.
 

Paulhodgkinson

Arachnopeon
Joined
Apr 26, 2016
Messages
40
;););):);)
I think perhaps the best way to help people learn to sex would be just to show photos of each gender. I will get the ball rolling. This is a female B. smithi.
molt:


Note the flap on the molt. Its the give-away for females. Absense of some sort of flap indicates a male, but remember to look closely! Some are tricky.
ventrally:


1. Males, especially more mature males may have a patch of somewhat thick hairs here.
2. More of a lip (this is where males deposit sperm). Males sometimes appear to have a "hole".
3. In comparison, females have a farther distance between the second book lungs.
4. Males sometimes appear to have a "half circle" patch. It is absent here. Sorry, its asymetrical.
The other two things have no significance, i just couldnt help myself :8o
My unsexed b.smithi is on its back moulting right now! Thankyou for putting this post on
 

Mloren

Arachnopeon
Joined
May 1, 2016
Messages
0
Hi!

I am new here and new to "sexing" tarantulas, could someone please help me with this molt from my L. striatipes?
My guess is female but as I said I am new and like to know if I am right.

Thanks
Michael
image.jpeg
 

Dustynn89

Arachnopeon
Joined
May 22, 2016
Messages
35
I think perhaps the best way to help people learn to sex would be just to show photos of each gender. I will get the ball rolling. This is a female B. smithi.
molt:


Note the flap on the molt. Its the give-away for females. Absense of some sort of flap indicates a male, but remember to look closely! Some are tricky.
ventrally:


1. Males, especially more mature males may have a patch of somewhat thick hairs here.
2. More of a lip (this is where males deposit sperm). Males sometimes appear to have a "hole".
3. In comparison, females have a farther distance between the second book lungs.
4. Males sometimes appear to have a "half circle" patch. It is absent here. Sorry, its asymetrical.
The other two things have no significance, i just couldnt help myself :8o
Thanks man! I've always just waited for maturing. This is awesome!
 

Vanessa

Grammostola Groupie
Joined
Mar 12, 2016
Messages
2,424
G. pulchripes female approximately 3.5".
_DSC2257-2.jpg
Female.jpg

G. pulchripes male approximately 4".
_DSC2401-2.jpg
Male.jpg
 

Haemus

Arachnosquire
Joined
Feb 11, 2016
Messages
128
Dummy here sexing via exuvia for the first time and could use some clarification. Here's a shot:
exuvium.jpg
Here's the same shot at 100% zoom:
exuvium-2.jpg
Despite all the threads and diagrams, I'm still somewhat confused at what I'm looking at lol. Am I correct that the green highlighted area is the spermatheca indicative of a female? Thanks in advance
 

z32upgrader

Arachnobaron
Old Timer
Joined
Mar 13, 2012
Messages
366
Dummy here sexing via exuvia for the first time and could use some clarification. Here's a shot:
View attachment 220021
Here's the same shot at 100% zoom:
View attachment 220023
Despite all the threads and diagrams, I'm still somewhat confused at what I'm looking at lol. Am I correct that the green highlighted area is the spermatheca indicative of a female? Thanks in advance
Great photos! Yes, that is exactly what you should be looking for. This is female. What's the species?
 

OliverWhatever

Arachnosquire
Joined
Sep 14, 2015
Messages
60
20161227_172933.jpg G59ujAv.jpg
This is the best quality I can get with a smartphone camera through dusty plastic.
Anyone got any input? I've been trying to get my hands on an exuvium, but most of the time it is too mangled to be useful.
 
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