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Alderfly Facts, Diet, Habitat

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TAXONOMY

Hemerobius lutaria Linnaeus, 1758, Europe.

OTHER NAMES

French: Mouche du Saule; German: Gemeine Wasserflorfliege; Danish: Dovenflue.

PHYSICAL CHARACTERISTICS

Adults are 0.52–0.72 in (13–18 mm) in size and blackishbrown in colour.

DISTRIBUTION

Occurs in Europe and into Russia.

HABITAT

Larvae inhabit the depths of nonetheless waters and muddy backwaters of rivers.

BEHAVIOR

During spring and early summer time adults are discovered on vegetation close to the water; they fly solely when it's sunny and heat.

FEEDING ECOLOGY AND DIET

Larvae feed on worms, insect larvae, and different small freshwater animals. Adults often take nectar from flowers with simply accessible nectaries.

REPRODUCTIVE BIOLOGY

After mating, the feminine deposits darkish grey eggs on leaves of littoral vegetation after which cleans the newly laid eggs. Larvae crawl into the water and scurry to the underside, the place they tunnel within the silt. After two winters the larva leaves the water and pupates for 2 weeks. The best numbers of adults are seen on the wing from May by means of mid-June.

CONSERVATION STATUS

Not threatened.

SIGNIFICANCE TO HUMANS

They are bioindicators in water high quality evaluation.

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