u/NoteEnvironmental639

hello, i have found two of these things a week apart at my job. is this a shell casing of a roach? my job has had an exterminator come out recently to deal with the problem. it is a very flat shell casing it seems like? is it from the fumigation or is it a molt? today when i found the more recent one it seemed to fall out of nowhere in front of me, whether it be from the wall or the ceiling, it was just magically in front of me.