i have been noticing a white spot in the middle of my purple monti cap..iut has been there for a few weeks..i kept looking at it, and couldn't tell if the spot was growing..today, i realized that it was...i have noticed that there was something living on it, i just didn't know if it was eating it..i never really saw the creature, just two antenae's coming out of a hole...i got some tweezers and tried to grab it..it went into the hole.. i broke open its tube that it was hiding in..it went way back to the edge of the cap..i ended up distoying the tube that it had burrowed..i guess i got the predator..there was alot of slime coming from the cap, so i couldn't tell if i actually got it..it appears to be gone though, but now i have this white line that is about 1" long in my cap..any clue what this critter was?