| Taxon |
Description |
| Labrundinia |
A
genus within the Midges family of (aquatic) True Flies |
| Laccobius |
A
genus within the Water Scavenger Beetle family of (aquatic) Beetles |
| Laccodytes |
A
genus within the Predaceous Diving Beetle family of (aquatic) Beetles |
| Laccophilus |
A
genus within the Predaceous Diving Beetle family of (aquatic) Beetles |
| Lachlania |
A
genus within the Bushlegged family of Mayflies |
| Ladona |
A
genus within the Skimmer family of Dragonflies |
| Lanthus |
A
genus within the Clubtail family of Dragonflies |
| Lara |
A
genus within the Riffle Beetle family of (aquatic) Beetles |
| Larsia |
A
genus within the Midges family of (aquatic) True Flies |
| Lauterborniella |
A
genus within the Midges family of (aquatic) True Flies |
| Lednia |
A
genus within the Spring Stoneflies family of Stoneflies |
| Lenarchus |
A
genus within the Northern case maker family of Caddisflies |
| Lepania |
A
genus within the Armored case maker family of Caddisflies |
| Lepidoptera |
The
order of Butterflies & Moths within New-winged Insects |
| Lepidostoma |
A
genus within the Lepidostomatid case maker family of Caddisflies |
| Lepidostomatidae |
The
Lepidostomatid case maker family of Caddisflies |
| Lepthemis |
A
genus within the Skimmer family of Dragonflies |
| Leptoceridae |
The
Longhorned case maker family of Caddisflies |
| Leptocerus |
A
genus within the Longhorned case maker family of Caddisflies |
| Leptoconops |
A
genus within the Biting Midges (no-see-ums) family of (aquatic) True Flies |
| Leptohyphidae |
The
Little stout crawler family of Mayflies |
| Leptophlebia |
A
genus within the Pronggill family of Mayflies |
| Leptophlebiidae |
The
Pronggill family of Mayflies |
| Lestes |
A
genus within the Spreadwinged family of Damselflies |
| Lestidae |
The
Spreadwinged family of Damselflies |
| Lethocerus |
A
genus within the Giant Water Bug family of Waterbugs |
| Leucorrhinia |
A
genus within the Skimmer family of Dragonflies |
| Leucotrichia |
A
genus within the Purse case maker family of Caddisflies |
| Leucrocuta |
A
genus within the Flatheaded family of Mayflies |
| Leuctridae |
The
Rollwinged family of Stoneflies |
| Libellula |
A
genus within the Skimmer family of Dragonflies |
| Libellulidae |
The
Skimmer family of Dragonflies |
| Limnebius |
A
genus within the Minute Moss Beetle family of (aquatic) Beetles |
| Limnephilidae |
The
Northern case maker family of Caddisflies |
| Limnephilus |
A
genus within the Northern case maker family of Caddisflies |
| Limnichidae |
The
Minute Marshloving Beetle family of (aquatic) Beetles |
| Limnophila |
A
genus within the Crane Flies family of (aquatic) True Flies |
| Limnophora |
A
genus within the Aquatic Muscids (House Flies) family of (aquatic) True Flies |
| Limnophyes |
A
genus within the Midges family of (aquatic) True Flies |
| Limonia |
A
genus within the Crane Flies family of (aquatic) True Flies |
| Liodessus |
A
genus within the Predaceous Diving Beetle family of (aquatic) Beetles |
| Lipsothrix |
A
genus within the Crane Flies family of (aquatic) True Flies |
| Litobrancha |
A
genus within the Common burrower family of Mayflies |
| Lopescaldius |
A
genus within the Midges family of (aquatic) True Flies |
| Lutrochus |
A
genus within the Minute Marshloving Beetle family of (aquatic) Beetles |
| Lype |
A
genus within the Nettube maker family of Caddisflies |