Alderfly

Weight

Not recorded

Length

Not recorded

Lifespan

Not recorded

Main food

Not recorded

Habitat

Not recorded

Young per litter or clutch

Not recorded

Conservation status

Not recorded

Countries on record

Not recorded

Not recorded

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

1. kingdomAnimalia
2. phylumArthropoda
3. classInsecta
4. orderMegaloptera
5. familySialidae
6. genusSialis
7. SpeciesSialis lutaria (Linnaeus, 1758)

Synonyms Hemerobius aquaticus, Hemerobius lutarius, Perla lutaria, Semblis lutaria, Sialis excelsior, Sialis nigra, Silalis flavilaterata

Catalogue of Life

CompareAlderfly vs Scarce alderflyAlderfly vs Sialis abchasicaAlderfly vs Sialis aequalisAlderfly vs Sialis annae

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• Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
  Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf
• Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
  Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence).
• Environment Agency freshwater fish surveys (National Fish Populations Database) · OGL v3.0 · 2026-11-14
  Environment Agency. Freshwater fish surveys (NFPD). Contains public sector information licensed under the Open Government Licence v3.0. © Environment Agency copyright and/or database right. https://environment.data.gov.uk/ecology/explorer/
• EltonTraits 1.0: species-level foraging attributes of the world's birds and mammals · CC0 1.0 · 1.0
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• Global Biotic Interactions (GloBI): interpreted data products · CC0 1.0 · 0.11
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• Global Register of Introduced and Invasive Species (GRIIS) · CC BY 4.0 · 2026-11-13
  Pagad, S., Genovesi, P., Carnevali, L., Schigel, D. & McGeoch, M.A. (2018) Introducing the Global Register of Introduced and Invasive Species. Scientific Data 5: 170202. https://doi.org/10.1038/sdata.2017.202. Country checklists published through GBIF by the IUCN SSC Invasive Species Specialist Group.
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• ReptTraits: a comprehensive dataset of ecological traits in reptiles · CC BY 4.0 · v1-2
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• TraitCH: a multi-taxa functional trait dataset for Switzerland and Europe · CC BY 4.0 · 2.0
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• Wikidata · CC0 1.0 · 2026-11-11
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• Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
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• Sex-specific median life expectancies from ex situ populations for 330 animal species · CC BY 4.0 · 2018-07
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@misc{alderfly_2026,
  title = {Alderfly (Sialis lutaria)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/alderfly},
  note = {Data as of 2026-11-14}
}