poison ivy sawfly - arge humeralis

insect animal invertebrate arthropod moth leaf butterfly pollinator flower wildlife pest beetle wing nature poison ivy sawfly arge humeralis close larvae feeding connecticut entomology biodiversity urushiol toxic green guide research field habitat natural england garden wildlife closeup coloration pattern leaf eating pond squantz connecticut fairfield foraging control species pest bug animal toxin incredible amazing beautiful pretty caterpillar larva larvae phytophagous radicans toxicodendron argidae red pink insect nature humeralis arge sawfly ivy