English (US)
MacCulloch's ForesterMagdalen Underwing
- Mahogany Similar-wing
Mahogany Sphinx
- Major Datana
Manitoba Oakworm Moth
- Manto Tussock Moth
Many-banded Daggerwing
- Many-lined Prominent
- Many-lined Wainscot Moth
Many-spotted King
Many-spotted Tiger Moth
Maple Callus Borer
Maple Clearwing
Maple Leaftier
Maple Spanworm
- Marble Dagger
Marbled Carpet Moth
Marbled Dog's-tooth Tortrix
Marbled Underwing
Margo's Tiger Moth
- Maroonwing Moth
Married Underwing
- Marsh Dagger
- Martha's Zanclognatha
Martin's Lichen Moth
Masked Birch Caterpillar
- Master's Dart
Matthew's Ghost Moth
McDunnough's Underwing
- McFarland's Crinodes
- Mead's Flower Moth
Meadow Fritillary
- Meadow Wainscot Moth
- Median-banded Dart
Mendocino Saturnia Moth
Mengel's Plume MothMeridian Duskywing
- Merry Melipotis
Meske’s Underwing
Mesquite Clearwing
Messalina Underwing
- Metallic Coleophora Moth
Mexican Agapema Moth
Mexican Blue-tailed Fly
- Mexican Lichen Moth
Mexican Moon Moth
Mexican Tiger Moth
Mexican Tortoiseshell
- Mexican Witch
Milkweed Tiger Moth
Miller Dagger
- Miranda Moth
Miranda Underwing
Mistletoe Borer
Mistletoe Stem Borer
Mitchell's Satyr- Modest Furcula
- Modest Kitten
Modest sphinx
- Morbid Owlet
Mormon Fritillary
Morning-Glory Leaf Miner
- Morning-glory Prominent
- Morrison's Sooty Dart
- Mossy Pseudobryomima
Mother Underwing
- Mottled Bomolocha Moth
Mottled duskywing- Mottled Oak Woodling Moth
- Mottled Prominent
Mottled Tiger
- Mountain Beauty
- Mountain Forester
Mountain Fritillary
- Mountain Hooded Owlet
Mountain Tiger Moth
Mournful Sphinx
Mournful Underwing
Mourning Cloak
Mouse-colored Euchaetias
- Mouse-colored Lichen Moth
- Mousy Plume
Muscosa Sphinx
Mustard White
- Mutant Moth
- Muted Dart
Mylitta Greenwing
91 species