Head: Smooth, brassy purplish-black. Palpi orange; very long and curved over head; underside scaled; last segment with some brown.
Antenna: Brassy purplish-black; thicker at base. Last 8 segments white.
Thorax: Brassy purplish-black
Wings: Brassy purplish-black with a diagonal break in orange stripe from base to past mid-wing. Fringe gray. Orange stripes lighter to absent in southern populations.
Hindwings oval, dark gray.
Legs: Shiny, brassy purplish-black with white patches.
Abdomen: Lighter purplish-black, underside brassy.
Size: 7 to 9 mm. Wingspan 15 to 18 mm.
Habitat: Forests and apple trees (dead wood).
Food: Bracket fungus, rotting wood, debris.
Flight Time: June to July.
Life Cycle: Larva feed in webs under the bark of dead trees and in bracket fungus. Adults are day-flying.
Comments: Ontario – Common from Long Point, Toronto, Georgian Bay. Recorded twice in Essex County in Leamington on June 8, 1929 and at Point Pelee National Park on July 22, 1927. Also in Quebec.
For information on synonyms, references and type specimens see next page