New Jersey Moths

Io Moth (Automeris io) 7746

Family: Saturniidae

Subfamily: Hemileucinae

Wingspan: 2.0-3.2 inches

Range in NJ: Statewide

A U.S./Canada distribution map for this species is available here.

Flight Period: Mainly May-August, 1 or 2 broods

Larval Food Plants: Wide variety of woody and herbaceous plants

Comments: Generally uncommon. Attracted to lights. This is one species of moth that absolutely must be seen with its wings open to be fully appreciated.



Io Moth

Male, Sussex County, NJ, 6/18/14


Io Moth

Female, Fredon, Sussex County, NJ, 6/23/15


Io Moth

Early-instar larvae on Blue Wild Indigo (Baptisia australis) Hunterdon County, NJ, 8/1/14


Io Moth

Mid-instar larvae on Blue Wild Indigo (Baptisia australis) Hunterdon County, NJ, 8/1/14


Io Moth

Last-instar larva, 9/2/11