At what size are you able to sex a T?...more...

wolfcharmer

Arachnopeon
Joined
Dec 30, 2004
Messages
10
Do males hatch with the bulbs on the pedipalps? I've gotten the impression that this is not right. So do they develop them after a molt? If so, at what size can you sex them? We just got an A. avicularia that is about 3 inchs long and we are trying to determine the sex. So far we believe it to be a female, but I only paid $12 so I wonder.
Thanks for any input.
Todd and Jessica
 

Spaceman_Spiff

Arachnoknight
Old Timer
Joined
Sep 26, 2004
Messages
222
welcome to arachnoboards!

Males do not hatch with palpal emboli (bulbs), they get them when they mature, with their ultimate molt.
After that males (normally) stop molting, so their livespan is shorter than a female's.

You can sex a tarantula from the inside of a molt or it's underside, but that's tricky!
I suggest that you use the search function, there is a lot of information regarding sexing on this board!

greets
Bernhard
 

rosehaired1979

Arachnoking
Old Timer
Joined
Apr 14, 2003
Messages
2,900
If you need to when it moults some dealers on here do free sexing so u can send the moult to have it sexed. I would say a good size to sex from is 2.5"-3"
 

Joe1968

Arachnoangel
Old Timer
Joined
Jun 15, 2004
Messages
993
with a microscope, I can sex a sling at about an inch to 1.25'' in lenght.
 
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