Unidentified Cocoon

Unidentified Cocoon

Observation - Unidentified Cocoon. Description: Please can you help to identify what might of made this cocoon, a colleague brought it in for me to identify but I have never seen anything like this before. This cocoon was found attached to a wooden trellis covered in ivy. Inside the cocoon there was a

Please can you help to identify what might of made this cocoon, a colleague brought it in for me to identify but I have never seen anything like this before. This cocoon was found attached to a wooden trellis covered in ivy. Inside the cocoon there was a pupa shell, possibly from a Poplar Hawk Moth as there is a poplar tree close by. The cocoon looks to be constructed out of fibres from the ivy branches.