re creature I found in the dark

[don.ald]

consider it part of your clean-up crew. if their well fed you won't even notice them. i have had 3 mantis show up over one year. first time i paniced and got rid of it. the second one is in my sump. and for the third, he is very interesting. lives in a rock and has a trap door that he opens daily looking for food. then every day he closes the trap door (a small pebble he places to fill the hole) . i rarely see him, just know he still there because the trap door is opened and closed daily.