How old until a T can be sexed?

hard_jokur

Arachnopeon
Joined
Jan 5, 2005
Messages
28
Peanut is molting, #2 since bringint it home...
At what size can a T be identified as M or F??
 

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Spaceman_Spiff

Arachnoknight
Old Timer
Joined
Sep 26, 2004
Messages
222
Kirdec said:
look like a female to me
And you can say that from the picture?
Let's be honest, sexing from such a picture is just oracleing!

@hard_jokur: a T can be sexed at any size, from the internal structures.
If you can get the shed skin out, look for a small pinkish or reddish structure between the first set of booklungs (on the inside).

greets
Bernhard
 

Gemein

Arachnosquire
Old Timer
Joined
Jan 22, 2005
Messages
123
I'd suggest waiting until you can grab ahold of the shed; will be much easier to tell at that point in time.
 

jw73

Arachnobaron
Old Timer
Joined
Aug 7, 2004
Messages
488
At about 2'' in legspan or 5th maybe 6th molt sometimes even later.
Kirdec, are you diviner ? :D :worship: :D
 

Kali

Arachnoknight
Old Timer
Joined
Apr 23, 2003
Messages
294
i always call mine females until proven otherwise. perhaps it helps? i thought they had to be more mature than the 5th or 6th molt? :?
 

Spaceman_Spiff

Arachnoknight
Old Timer
Joined
Sep 26, 2004
Messages
222
The presence or absence of spermathecae can be ascertained under magnification even in the early instars, the problem is not to rip the tiny skin appart!
When I tried to sex my little C. cyaneopubescens for the first time I destroyed the exuvium because it was just too tiny (about 1,5cm legspan).
I had to wait two month for another molt but then I knew for sure she was a girl!

Bernhard
 

Joe1968

Arachnoangel
Old Timer
Joined
Jun 15, 2004
Messages
993
with the naked eye you can sex the moult at about 2'' LS.
but with a stereo microscope and a very keen eye, you can sexed the moult even at .75'' LS. heres an example of my B. vagans, shes about 1'' now, molted just this past friday Feb 4th.

the first pic I took from the viewfinder of my microscope , hopes it works out, the other pic see the moult next to the lincoln penny for size comparison.
 

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BlkCat

Arachnoprince
Old Timer
Joined
Nov 13, 2004
Messages
1,100
I need one of u guys to come over and show me in person how to sex these Ts from under a microscope. I am constantly 2nd guessing myself. Therefore i am never sure what is right or not. :wall:
 
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