Sexing Scutigeromorpha

kermitdsk

Arachnosquire
Joined
Jul 8, 2015
Messages
106
Because there was a question how to sexing Scutigeromorpha, I decided to explain it in this thread on the example of Thereuopoda longicornis.

Scutigeromorpha have a sexual dimorphism, so it's really easy for anyone to see which sex the Scutigeromorpha has, without any equipment.

0.1 Thereuopoda longicornis
P1010018.JPG

P1010008.JPG
Females, unlike the males, have an elongated genital organ, it looks like an aditional smal body segment. Furthermore females have two gonopos, which look like tongs.

1.0 Thereuopoda longicornis
P1010011.JPG

P1010026.JPG
Males don't have this aditional body segment. There genital organ looks shorter and they have four straight (not like tongs) gonopods.

That's it! I hope this helps everybody who is interessted in these pedes ;)
 

Euscorpius

Arachnopeon
Joined
Jun 15, 2018
Messages
27
It also works for stone centipedes (Lithobiomorpha). Here in Friuli we have a "big" species of Eupolybothrus that grows up to 5 - 6 cm / 2" BL, they are pretty easy to sex.
 
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