Weird S. mesaensis behavior

[Ncshooter]

I've noticed one of my S. mesaensis keeps arching it's back half into the air and just staying like that for a while. Anyone know what's going on with it? Sorry for the quick cell picture, but you get the idea... kinda looks like one of those jacked up trucks LOL

 

[GordoOldman]

If your temperatures have not increased lately (many times stilting happens as a response to cool the body) if it is a female it is possible she is gravid and near birthing...