DR011 Rupela tinctella

Crambidae - Wingspan: 28mm.

A problem species, which I have not been able to confirm. I have come across this and the following moth in a number of Neotropical countries, and it has been difficult to identify, but I have come across this ID on a French Antilles web-site which looks more likely. Two forms of white moth came into our trap which superficially look similar, and I wonder whether the smaller examples are actually the males, whilst the larger form (shown under the same DR number), looks to be very similar but also has a yellow tail tuft. Perhaps that is the Female?