No interactions present.
I think that the likeliest confusion species is I. oehlmanniella but as you say that has a slightly later flight period. I. oehlmanniella also has a pale mark on the costa (leading edge) close to the wing tip which your moth lacks. I. pectinea is, I believe, less contrastingly marked than either oehlmanniella or masculella.
Your moth appears to be a female with antenna that lack pectination.
Thanks for your comments and for verifying my identification, Jonathan. I thought that the moth in the photo was a female too.
Lat/Lng: 52.7, 0.3
OS grid ref: TF5820