Iridopsis herse 
Iridopsis jurgina 
Iridopsis validaria 
Isochromodes atristicta 
Isochromodes bellona 
Isochromodes epioneata 
Isochromodes extimara 
Isochromodes granula 
Isochromodes polvoreata 
Isturga penthearia 
Isturgia famula 
Itame vincularia 
Iulotrichia decursaria 
July belle 
Juniper-twig geometer 
Kent's thorn 
Krananda falcata 
Krananda lucidaria 
Krananda oliveomarginata 
Krananda semihyalina 
Labrador carpet moth 
Lacy emerald 
Large Emerald 
Large Lace-border