English (US)
Cabbage Palm Caterpillar- Cadbury's Lichen Moth
- Cadbury's Mystique
Caicus sphinx
California clearwing
- California Cloverworm
- California Oak Moth
California Sister
California Tent Caterpillar
California Tiger Moth
California Tortoiseshell
Calleta Silkmoth
Callippe Fritillary
Canadian Fleabane Moth
- Canadian Giant Moth
- Canadian Owlet Moth
Canadian Sphinx
Canal Scarlet-eye
- Capsule Moth
- Caramel Looper
Caribbean Queen
- Carissima Underwing
Carlotta's Tiger Moth
Carolina Sphinx
Carpenterworm moth
Carrot Seed Moth
Carter's sphinx
- Cascades Panthea
Catalpa Sphinx
- Catocaline Dart
- Cattail Borer
Ceanothus Borer
- Ceanothus Nola Moth
Ceanothus Silkmoth
Cecropia Moth
Cecrops-eyed Silkmoth
- Celery Looper
Celery StalkwormCentral American Checkered-Skipper
Cerisy's sphinx
- Cerulean Looper
- Chagnon's Borer Moth
- Chalky Bird-dropping Moth
Charming Underwing
- Cherry Dagger
Chestnut Borer
- Chestnut Schizura
Chiapas' Umber Skipper
Chihuahuan Agapema
Chisoya Sphinx- Chocolate Idia
- Chocolate Prominent
Chokeberry Underwing
Cincta Silk Moth
- Cinnamon Tussock Moth
Cinquefoil CopperCivil Rustic
- Clandestine Dart
Clark's Day Sphinx Moth
Clavipes Sphinx Moth
- Clear Dart Moth
Clear Oakworm Moth
Clearwing Borer
Clematis Borer
Clematis Clearwing
Clemen's Sphinx
Clemens' False Skeletonizer MothClinton's Underwing
Clio Tiger Moth
- Cloaked Marvel
- Closebanded Yellowhorn
- Clouded Crimson Moth
Clouded Underwing
- Cloudy Arches
- Clover Looper
- Clover Nomophila
Cluentius Sphinx
Clymene Moth
- Coastal Plain Zanclognatha
Coastal' Green HairstreakCoffee sphinx
- Collared Arches
Collared Cycnia
- Collared Dart Moth
- Colona Moth
- Colorful Zale
Columbia Silkmoth
Columbia Tiger Moth
Columbine Duskywing- Comma wainscot
Common Gluphisia
- Common Grass Moth
- Common hyppa
- Common Idia
Common Lytrosis Moth
Common Ringlet
Common Tan Wave- Comstock's Sallow
Confused Haploa
- Confused Meganola
Conifer Swift Moth
Consort Underwing
- Conspicuous meganola moth
Consular Oakworm Moth
- Contracted Datana
Convict Caterpillar
- Copper Underwing
Corn Earworm
Coronis Fritillary
Coronopus Borer
Cosmopolitan
Costa Rica Leaf Moth
- Cotton Stem Moth
Cottonwod Crown Borer
Cottonwood Clearwing
- Cottonwood Dagger
- Cow Parsnip Borer
- Cowhead Arches
Cramer's sphinx
- Cranberry cutworm
Crepuscular Rock-rose Moth
Cresson's Ctenucha
Crethon Daggerwing
Crimson-banded Black
Crimson-bodied Lichen Moth
- Crucialis Woodling Moth
- Cryphia Moth
Cryptic Fritillary
Cuban Crescent
- Cuban Heterocampa
Cuban Sphinx
Cuban sphinx
- Cuneate Arches
- Cupid Dart
Cypress Sphinx
138 species