1. Sialidae, family Sialidae - an arthropod family including: alderflies
   --₁ is a kind of arthropod family
   --₁ is a member of Megaloptera, suborder Megaloptera
   --₁ has members: Sialis, genus Sialis
   

Definition: The family Sialidae is a taxonomic classification of insects commonly known as alderflies.

Senses:

1. As a noun: A family of insects belonging to the order Megaloptera.

Usages:

1. This book provides comprehensive information about the lifestyle and behavior of alderflies, including those in the family Sialidae.
2. The alderfly, which is part of the family Sialidae, typically has a long lifespan in its aquatic larval stage.
3. Alderflies in the family Sialidae are known for their broad wings and slender antennae.

Samples:

• The family Sialidae consists of approximately 170 known species worldwide.
• After hatching, the alderfly larvae from the family Sialidae inhabit freshwater environments.
• Researchers are studying the reproductive behavior of alderflies in the family Sialidae.