Arctiid moth

Description:

These photographs were taken in a span of about a week, 9th to 15th May, 2013. In the morning of the first day (9th), this moth was found resting on the wall with other moths. I was surprised to still find it there by noon when the others had already gone. On close observation, I discovered that there were small round silver-coloured balls on the wall near its abdominal end, like eggs or excretion. I was unsure. The silver balls kept increasing day by day and it changed position often to make room for new balls. After the last photograph on the 15th, it was gone by daytime leaving the mystery balls behind. \ I imagined there could be a clue or message in the array of the balls, but it made absolutely no sense