Cloaked Minor ????

Cloaked Minor ????

Observation - Cloaked Minor ????. Description: I've been going round in circles with this one. About 12mm long and attracted to MV light trap. Cloaked Minor shouldn't be flying in May but I can't find an alternative. I'm probably missing something obvious. Can someone put an end to my indecision?

I've been going round in circles with this one. About 12mm long and attracted to MV light trap. Cloaked Minor shouldn't be flying in May but I can't find an alternative. I'm probably missing something obvious. Can someone put an end to my indecision?