Established
| Common name (English) | |
|---|---|
| Leptocybe invasa | Eucalyptus gall-wasp |
| Leptoglossus occidentalis | Western conifer seed bug |
| Leptomastix dactylopii | |
| Leptopsylla segnis | House mouse flea |
| Leucaena leucocephala | Mimosa |
| Lindorus lophanthae | Purple scale predator; Scale-eating ladybird |
| Linguimaera caesaris | |
| Linopherus canariensis | |
| Lioberus ligneus | |
| Liposcelis bostrychophila | |
| Liposcelis brunnea | |
| Liposcelis corrodens | |
| Liposcelis decolor | |
| Liposcelis entomophila | |
| Liquidambar orientalis | Oriental Sweetgum |
| Liquidambar styraciflua | Sweet gum, Alligatorwood |
| Liriomyza huidobrensis | Pea leaf miner |
| Liriomyza trifolii | Vegetable leaf miner; American serpentine leafminer; Celery leafminer |
| Lophocladia trichoclados | |
| Loxosceles rufescens | Mediterranean recluse |