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

Discussion in 'Tarantula Questions & Discussions' started by wolfcharmer, Dec 30, 2004.

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    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
  2. Spaceman_Spiff

    Spaceman_Spiff Arachnoknight Old Timer

    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!

  3. rosehaired1979

    rosehaired1979 Arachnoking Old Timer

    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"
  4. Joe1968

    Joe1968 Arachnoprince Old Timer

    with a microscope, I can sex a sling at about an inch to 1.25'' in lenght.