Hey
I have 4 Babycurus jacksoni and I want to breed them but I'am afraid it's all same sex.Could you please check these photos and tell me what sex they are.I have only photos of 3 of them as the fourth was shedding.
Bodylengh is about 3cm.How far from adult are they ?
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If you need some other photos please say soo.

I don't think they are mature yet.. or you have 3 females.

You can't sex them until they're mature. Males mature at fifth instar and have large chela; females mature at sixth instar, are larger than males, and have a robust metasoma as adults.

Adult male, subadult female:


Adult male, adult female:

Moved to sexing forum.

Ok.Thanks for info guys

Are there anyway I can see when they reach adulthood ?

Great pics and a beautiful version of the species

Just like I said -- when they mature, males will have bulbous pinchers and females will be larger with a more robust metasoma.

The difference between subadult and adult in females is quite obvious. Here's a picture of a female I had with her exuvium:


Basically, when a female matures, her new tail shouldn't look like it was able to fit in the old one.

Ok thanks.Must give it time then and look for differences.