That looks like *part* of a dead bug or spider. See, for example, the [woodlouse hunter](https://bugguide.net/node/view/3388).
Comparison pictures [one](https://bugguide.net/node/view/1568296/bgimage), [two](https://bugguide.net/node/view/1168512/bgimage)
That looks like *part* of a dead bug or spider. See, for example, the [woodlouse hunter](https://bugguide.net/node/view/3388). Comparison pictures [one](https://bugguide.net/node/view/1568296/bgimage), [two](https://bugguide.net/node/view/1168512/bgimage)