Something is leaving scars in my drywall and deposits on the outside that I presume to be wood. These deposits are flat, stick out from the wall, an inch or more square, with a gap between the top and bottom layers.
The 1st picture is of a groove about 4 inches long in the drywall.
2nd is of the same area with some drywall removed (showing 1/4" gap between drywall and frame).
3rd photo is of one of the fan-like deposits that stuck out from the groove.
4th is a dead bug that i found nearby, may or may not be related to the damage.
I live in North Texas
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