Small paper-thin insect nest on beam in loft

Small paper-thin insect nest on beam in loft

Observation - Small paper-thin insect nest on beam in loft. Description: I found this small - one and half inch diameter - paper-thin nest attached vertically to one of the wooden beams in my loft while I was trying to put in a television aerial.

I found this small - one and half inch diameter - paper-thin nest attached vertically to one of the wooden beams in my loft while I was trying to put in a television aerial.