Zoology / Taxonomy / Lepidoptera / Phylogeny / Populus / Close relationships / Animals / Polymerase Chain Reaction / Invertebrate Pathology / North America / Degeneration / North American / Base Sequence / Invertebrate / Close relationships / Animals / Polymerase Chain Reaction / Invertebrate Pathology / North America / Degeneration / North American / Base Sequence / Invertebrate