May. And that walleye fishing is by far better in May than in July or August. The wildlife watchers that are the first vistiors of the season on some lakes see the most moose. They are one of the biggest moths around. Their five inch wing span makes a long sweeping curve to a delicate pointed tail. Their color, one not normally seen in nature, is an undescribably subtle mint green, with maroon and pale yellow highlights.
Males have large, feathery antennae.
Unfortunately, not very many paddlers ever see graceful moths. They are only in the adult stage from late May to late June. From cocoon to death spans only one week. During this short time their sole purpose is to mate, and lay eggs. They are nocturnal fliers - sleeping during the day.