An unknown insect

An unknown insect

Observation - An unknown insect - Global. Description: An odd one this. About the size of a house fly, and when I photographed it, I thought it would be a fly of some sort. But from the second pic you can clearly see two pairs of wings. So I'm stumped to even get it to Order. Indoors, but it had come in from

An odd one this. About the size of a house fly, and when I photographed it, I thought it would be a fly of some sort. But from the second pic you can clearly see two pairs of wings. So I'm stumped to even get it to Order. Indoors, but it had come in from my woodland garden. Ideas?