Tricky Momphid

Not very sure about this (photo quality does not help - this is small - c. 5mm and about at the limit of my current photography set up), but it looks like a member of Momphidae, but not a very good match for anything in my books. Seems to have some features of M. propinquella and some of M. divisella/bradleyi, but none of these really look quite right. Any advice very welcome. Have retained.