Index - Insects
L
- Lady beetle (convergent lady beetle, Mexican bean beetle, Asian lady beetle)
- Lapland syrphid fly
- Larch casebearer
- Larch needleworm
- Larch pug moth
- Larch sawfly
- Large aspen tortrix
- Large flesh fly
- Large oakapple gall
- Late birch leaf edgeminer
- Lesser maple spanworm
- Lesser shothole borer
- Lilac borer (Ash borer)
- Lilac leafminer
- Locust borer
- Lodgepole terminal weevil
- Lombardy leafminer
- Lonchaeid fly
Latin
- Lambdina fiscellaria (Guenée)
- Lambdina fiscellaria lugubrosa (Hulst)
- Lambdina fiscellaria somniaria (Hulst)
- Lepidosaphes ulmi (L.)
- Leptocorus trivittatus (Say)
- Leucoma salicis (L.)
- Lithophane atara (J.B. Smith)
- Lithophane itata (Smith)
- Lonchaea corticis Taylor
- Lophocampa argentata (Packard)
- Lymantria dispar (Linnaeus)