Monarch butterfly 
Monkey Puzzle 
Monkey Slug Moth 
Monobolodes pernigrata 
Monoctenia falernaria 
Monodecus admirandus 
Monopis monachella 
Monopis spilotella 
Monosyntaxis arfakensis 
Monosyntaxis holmanhunti 
Monosyntaxis trimaculata 
Montana six-plume moth 
Moonlight Jewel 
Moonseed fruitpiecer 
Moonseed moth 
Moore's Ace 
Moorland clouded yellow 
Mopane worm 
Morbid Owlet 
Moresa costalis 
Mormon metalmark 
Morning glory plume moth 
Morning-glory Leafminer Moth 
Morning-glory Prominent