English (US)
W-marked CutwormWaiter Daggerwing
Walker's MetalmarkWalker's Sphinx
- Walnut Caterpillar Moth
Walnut sphinx
Walter's Saturnia Moth
- Wandering Brocade
Wandering Diacrisia
- Wanton Pinion
Waved Sphinx
- Waved Tabby
- Wavy Chestnut Y
Wavy-Lined Heterocampa
- Wavy-lined Zanclognatha
Wedgling Moth
- Well-marked Cutworm
- Wesstern Panthea
West Coast Lady
- Western Apamea Moth
- Western Bean Cutworm
- Western Bomolocha
- Western Conifer Looper
- Western Furcula
Western Grapeleaf Skeletonizer Moth- Western Legume Prominent
Western Meadow Fritillary
Western Oak DuskywingWestern Oakgall Clearwing
Western Polyphemus Moth
Western Poplar Clearwing
Western Pygmy-Blue
- Western Red-humped Caterpillar
- Western Small Flower Moth
Western Tent Caterpillar Moth
- Western Tussock Moth
- Western Tussock Moth
- Western W-marked Cutworm
- Western W-marked Cutworm
Western Willow Clearwing
- Western Yellowstriped Armyworm
- Wheat Head Armyworm Moth
- White Cutworm
- White Flannel Moth
- White Furcula Moth
White Peacock
- White Pine Cutworm
White Underwing
- White Y Mark
White-banded Day Sphinx
White-banded Pallid RingletWhite-banded Toothed Carpet Moth
- White-blotched Heterocampa
- White-dotted Groundling Moth
- White-dotted Prominent
White-headed Monopis Moth
- White-headed Prominent
- White-lined Bomolocha Moth
- White-lined Hypena
White-lined Royal Moth
White-lined Sphinx
- White-margined Ctenucha
- White-marked Heterocampa
White-marked Tussock Moth
White-plaqued Sphinx
- White-spotted Midget
- White-spotted Properigea
- White-streaked Looper
- White-streaked Prominent
White-streaked Saturnia Moth
- Whitney's Underwing Moth
Whitney’s Underwing
Widow Underwing
Wielgus' Ghost Moth
Wiest's Primrose Sphinx
Wife Underwing
Wild Cherry Sphinx
Wild Forget-me-not Moth
- Wild Indigo Duskywing
- Wiley's Furcula
Williams' Tiger Moth
Willow Clearwing
- Willow Dart
Willow Ghost Moth
- Willow Kitten
Willow-Bog Fritillary
Wonderful Underwing
- Wood-colored Apamea
- Wood-coloured Quaker
- Woodland Spotted Cutworm
Woodland Tiger Moth
Woody Underwing
Woollybear
95 species