For several months I have been picking these nudis off my M. spumosa, I average one per month, I missed one month and the section they seem drawn to, bleached out a bit...oce the critters were removed it colored back up just fine, but I'm looking for an ID. I've never noticed these on either my m. digitatas or my caps.
*Note to RL*
A word of caution, I remember when we were aranging the shipment, the frag you were going to send me, suddenly bleached, the same happened when I missed a month of picking these guys off. Might wanna keep your eyes out for these guys. They appear to be specifically drawn to the spumosa.