I'm pretty sure it's a beetle due to the lines on it's back/rear but I'm not positive and if I'm wrong I need to take action quickly. Thanks in advance :)
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This is a click beetle (Elateridae), so not a cockroach. This is most easily seen by the long pointed corners/angles at the posterior part of the pronotum, which is part of the “click” mechanism they use to flip themselves when they land of their back, or to startle predators.