One invasive species that’s been here for quite some time, though, is the spongy moth (Lymantria dispar dispar, formerly known as the gypsy moth). Spongy moth is somewhat unique in that adult females do not fly. albescens, L. umbrosa, L. postalba, and two subspecies of L. dispar: L. dispar asiatica and L. dispar japonica—are termed the “flighted spongy moth complex” and are high on regulatory officials’ “I sure hope we don’t find these in North America” list of pests. Yes, it would, and yes, this really happened; it’s how the U.S. had its first detection of flighted spongy moth back in 1991. International collaborations have resulted in a robust detection and management programs for the flighted spongy moth complex, and we possess a lot of knowledge about this group.