1. Dark-coloured insect having predaceous aquatic larvae
   - alder fly, Sialis lutaria

Derived forms: alderflies

Type of: neuropteran, neuropteron, neuropterous insect

Part of: genus Sialis, Sialis

Encyclopedia: Alderfly

• decibel
• scoreline
• scorer
• scores
• scoria
• scoriaceous
• scoring
• scoring system
• scorn
• scorned
• scorner
• scornful
• scornfully
• Scorpaena
• Scorpaena grandicornis
• scorpaenid
• scorpaenid fish
• Scorpaenidae
• scorpaenoid
• scorpaenoid fish
• Scorpaenoidea
• scorper
• Scorpio
• Scorpio the Scorpion
• scorpioid cyme