Air intake question

Hello, I bought my car as salvage from a front end collision and I've been slowly getting it back up to working. My air intake box just had a hole on the side and I felt like it wasn't right and went to see other cars and lo and behold, There's something missing from my car. In this image, it looks like a circular tube that leads into a small box which I assume then goes into the actual air intake box which houses the filter. I can't find what It's called though and I can't seem to find a replacement part for it anywhere. Can anyone help? Thanks in advance!

image again: