genus Sialis

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Noun1.genus Sialis - type genus of the Sialidaegenus Sialis - type genus of the Sialidae    
arthropod genus - a genus of arthropods
family Sialidae, Sialidae - an arthropod family including: alderflies
alder fly, alderfly, Sialis lutaria - dark-colored insect having predaceous aquatic larvae
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References in periodicals archive ?
Revision of the genus Sialis from oriental China (Megaloptera: Sialidae).
Nearctic alder flies of the genus Sialis (Megaloptera: Sialidae).