My family and I are living in Xalapa, Mexico for the year. We have many of these faux-bark creatures and I am fascinated! I have no idea what their classification is. I have tried desperately to find them on the Internet, but have so far found nothing. They are about 1/2 inch long. They have a little caterpillar-like head but their bodies (shell?) look like bark. I have also found them going up and down webs or silk from the ceiling. They stick to the ceiling, plants or anything with their exposed mouths. The one on my house plant is eating the leaves, but not too many, so I let him/her stay. Thanks for all you do!
Certain Inchworms in the Geometrid Family exhibit similar camoulfage tendencies. That is our best gues