What is this
The image is a bit out of focus so I can not see details of the markings and structures. It is in the family of beetles known as Cerembysidae. If you do a search on line for this family, you might see images that match what you have and be able to get further details of its biology.
When you take images, it helps to put something in the image that can be used to determine size and take several images as close as possible while still being in focus.