Head: Orange. Palpi curved up over head; dark except last segment white with a brown ring at center. Large eyes.
Antenna: Silvery-white, ringed with black.
Wings: Yellowish with 2 wide dark orange patches outlined in silver and black. 1st patch extends across base of wing; 2nd patch semi-circular from about mid-wing to anal angle. White slanted streak from 2nd patch to costa edge. Oblong silver spots along wing tips. Fringe long, yellowish like wing, except a small brownish patch near anal angle. Hindwings and fringe grayish-brown.
Legs: All segments dark brown with white tips. Hind leg somewhat lighter brown. Long white spurs.
Similar Species: Decantha borkhausenii has brown background on wings and brown head.
Size: 6 to 7 mm long. Wingspan 11 to 12 mm.
Habitat: Deciduous forests.
Food: Dead wood and bark of hickory, larch, elder and elm.
Flight Time: May to August.
Range: Eastern half of U.S., Texas, Oklahoma, N. Dakota and Canada.
Life Cycle: Larvae arctic species usually are found in dead wood, where they probably feed on fungus. Little is known of the specific habits of these larvae, and some of the species apparently never have been reared. Larva has been reared on corn plants; found under bark of elm and elder trees in the wild. Also have been reared from rotting Maple logs.
Comments: Essex County – Point Pelee insect list.
For information on synonyms, references and type specimens see next page