Large maple spanworm 
Large Purplish Gray 
Lassaba acribomena 
Lassaba vinacea 
Latticed Heath 
Least Carpet 
Least-marked Euchlaena 
Lemon Plagodis Moth 
Lesser cream wave 
Lesser grapevine looper 
Lesser maple spanworm 
Leuciris fimbriaria 
Leucula lucidaria 
Lewes wave 
Ligdia adustata 
Lime-speck pug 
Linden Looper 
Linnaeus's Joker 
Lipomelia 
Lissochlora albociliaria 
Lissochlora albocillaria 
Lissochlora manostigma 
Little Thorn 
Lobocraspeda latefascia