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Adults can reach 20 millimetres (0.79 in) of length, with a wingspan of 22–34 millimetres (0.87–1.34 in). They have a stocky body with a black or dark brown basic coloration, including head and legs. The wings are greyish, membranous and translucent, with pronounced dark venation. At rest
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Females lay a large quantity of eggs on plants overhanging the waters, where larvae will fall after hatching. Larvae are aquatic predators of small invertebrates and usually wait for their prey in silt or under stones just emerging from the water. The life cycle in this species lasts about one-two
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The flat larvae reach approximately 17 millimetres (0.67 in). They have large heads, powerful jaws and three pairs of legs. Furthermore, they show feathery gills on the abdominal segments. The abdomen terminates with a long gill.
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Adults are most often encountered from May through June on vegetation near slow-flowing streams or close to ponds. They are bad fliers and never leave the waters where the larvae have developed.
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Adults of this species usually inhabits ponds and slow-flowing streams, while the larvae live in mud and detritus under water.
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Olsen, L., Sunesen, J., & Pedersen, B. V. (1999) Small freshwater creatures. Oxford
University Press, Oxford.
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Cycle biologique et production de Sialis lutaria L.(Megaloptera) dans le lac de Port-Bielh (Pyrenees
Centrales)
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502:. In Annales de Limnologie-International Journal of Limnology (Vol. 9, No. 1, pp. 45-61). EDP Sciences
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Macan, T. T. (1959) A guide to freshwater invertebrate animals. Longmans, Green & Co Ltd., London.
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O'Tool, C. (2002) The new encyclopedia of insects and their allies. Oxford
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738:Fauna Europaea (new)
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187:Hemerobius lutarius
369:Female laying eggs
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448:. Retrieved
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43:. Side view
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891:Megaloptera
838:Megaloptera
764:iNaturalist
609:Wikispecies
542:Fly Fishing
295:Dorsal view
287:Description
273:Switzerland
213:Megaloptera
106:Megaloptera
885:Categories
450:2011-05-06
399:References
86:Arthropoda
134:Species:
72:Kingdom:
66:Eukaryota
649:BioLib:
600:Q1316279
594:Wikidata
547:Bugguide
525:: 64–68.
440:"Arkive"
217:Sialidae
209:alderfly
205:alderfly
179:Synonyms
166:Linnaeus
116:Sialidae
112:Family:
82:Phylum:
76:Animalia
62:Domain:
756:5101313
691:4129419
552:Habitas
518:Zootaxa
320:Gallery
308:Biology
279:Habitat
269:Romania
249:Germany
233:Belgium
229:Austria
215:family
122:Genus:
102:Order:
96:Insecta
92:Class:
808:247485
795:279420
769:319948
704:SIAWLU
665:361829
637:ARKive
537:Sialis
412:Biolib
356:Juncus
333:Mating
265:Poland
245:France
127:Sialis
836:This
730:84810
717:91165
712:EUNIS
678:4X5J4
652:61064
393:Larva
261:Spain
253:Italy
842:stub
790:NCBI
751:GBIF
699:EPPO
660:BOLD
523:2230
381:Eggs
271:and
170:1758
777:NBN
686:EoL
673:CoL
624:ADW
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
