spongy moth chrysalis - lymantria dispar

animal invertebrate insect nature wildlife leaf arthropod flower green plant spider moth beetle soil pest spongy chrysalis lymantria dispar close found fairfield connecticut maimaiga entomosphaga npv virus nucleopolyhedrosis adult american biodiversity bug conservation defoliation destructive detrimental egg environmental european female forest gypsy habitat impact invasive irritating loss mass north oak preservation problem species spread spring squantz summer trees wild worldwide