Yes it does look like medius right now, it turned shiny black after molting but it typically has the yellow bands you see in the diadema. It was bought as a diadema and does typically look like one! Like I said it just looks darker now because it’s freshly molted. This is exactly what it looked like before it molted.
Oh so they aren’t sexed internally using molts? Sorry I’m used to Ts, I do know there’s some external differences between them but I thought maybe I could use the molt to sex them in a similar way to a tarantula.
That "elbow" extending farther than the "knee" of the first set of legs trick refers to the pedipalps, not the chelicerae.
Only certain families are reliably sexed internally (which can be a little confusing). Family Phrynichidae (which includes Damon) can be sexed externally once they get large enough. Females will have a tuft of red hair next to the operculum, males won't. You can sex them at earlier ages that way too because it can take a while for the pedipalps to really start extending on males.
I’m relatively new to keeping, so I apologize for the incorrect terminology. That’s pretty much what I was wondering, if they show gender specific characteristics only at maturity or if you can tell earlier. Thank you!
Phrynichidae and some specific members of Charontidae, as far as I noticed already
I personally never sex via the shape of the operculum. Either I use old exuvias and check of I see the speramtophore organ/ or the gonopods, or I use sexual dimorphic characters (mainly expierence and 'feeling'; in the last years I had a hit rate from about 90% just sexing by comparing specimen side by side).