Seeing the spermatheca should not be an indication on whether a Tarantula is of breeding size. I've sexed 2cm spiderlings through this method using a microscope.
Seeing the spermatheca should not be an indication on whether a Tarantula is of breeding size. I've sexed 2cm spiderlings through this method using a microscope.
So from what I have read the mature female will have a sclerotized spermatheca. I am definitely in the learning process of breeding when it comes to this kind of information so I am not too sure how reliable that information is. Without an exact measurement I would estimate my Pamphobeteus mascara to be around 6 inches.
The size of the T along with condition of the spermathecae and uterus externus should be considered in combination when determining if a female is ready for pairing. I would look for the spermathecae to be a little darker/harder than they appear to be in this photo, maybe one more molt. Compare to this example of a slightly larger specimen:
Personally, I would not be looking to pair a mascara that is only 6 inches (25% short of full potential growth of 8 inches)
The spermathecae does not look dark enough and the size (6 inches) although possible, is by far from ideal. 7inches would be the minimum for a P mascara that I would consider. I had 2 sacs from 2 different mascara that were both 7 to 8 inches snd both females very receptive. Younger females have the tendency to see the male as food or will attack to defend if a male is introduced too soon.
@mschemmy I would give her one more moult before a male is introduced
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