1. Etymology

2. References

The length of the forewings is 16–19 mm for males and 15–18 mm females. The forewings are a mixture of gray brown, gray tan, red brown, gray and blackish-gray scales. The ground color is medium-dark to dark gray brown or reddish-gray brown. The dorsal hindwing is slightly brownish gray, darker and grayer on the distal half, with a gray ill-defined oval discal spot and a thin terminal line. Adults are on wing from late April to early June.

The larvae probably feed on Rumex venosus.

Etymology

The name is derived from the Latin diluvium (meaning deluge or flood). The Columbia Basin where this moth occurs in Washington was scoured repeatedly by cataclysmic floods at the end of the Ice Age.

References

• Francis Vincent, Jr.
• Francis Vincent Jr.
• Francis Vincent Jr. Zappa
• Francis Vinton Greene
• Francis V of Modena
• Francis Walker
• Francis Walker (entomologist)
• Francis Walker (Virginia)
• Francis Wallace Grenfell
• Francis Walsingham
• Francis Walter
• Francis Walters
• Francis W. Aston
• Francis Wayland
• Francis Webb
• Francis Webb (engineer)
• Francis Webb (poet)
• Francis Wegg-Prosser
• Francis Weston
• Francis Wharton
• Francis Wheatley
• Francis Wheatley (painter)
• Francis Wheatley (VC)
• Francis Wheen
• Francis Whitaker