False Black Widow Spider?

Submitted by: Alex Best


Web at entrance to unused nest box south facing.
Web is definitely not orb spider it has a flat surface below with a tangle of silk above. The spider comes out at night and hangs under the web. two poor photos attached!
Ordnance survey map reference: SK 56806 03820
Map reference:52.6291726977 -1.162150272,17