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Drepanepteryx phalaenoides

Drepanepteryx phalaenoides

Systematics
Class : Insects (Insecta)
Subclass : Flying insects (Pterygota)
Superordinate : New winged wing (Neoptera)
Order : Reticulated winged (Neuroptera)
Family : Daily
Scientific name
Hemerobiidae
Latreille , 1803
Micromus variegatus

The day-like (Hemerobiidae), also known as brown lacewing , with around 40 species in Central Europe , form the largest native family in the order of the netwings ; there are over 500 species worldwide. They are similar to lacewings , but are usually smaller and have no green-colored wings, but mostly gray or brown.

features

With a wingspan of around 30 millimeters, Drepanepteryx phalaenoides is the largest native species of the diurnal, clearly recognizable by the brown wings that are bulged at the rear edge, which give the animal the appearance of a withered leaf ( mimesis ), an impression that is reinforced by the fact that in case of danger, the head is hidden between the wings.

All other representatives of the day-like are small to medium-sized with spans between 10 and 30 millimeters. Most species are brown, but often have clear wings without the noticeable trailing edge of the species described above. Fore and hind wings have coupling structures that connect them to one another in flight. The hind wings are crippled or missing in some genera . The head has small point eyes , the antennae are long and like a string of pearls.

Way of life

The day-like live predatory as larvae as well as adult animals and feed mainly on aphids , which is why the larvae are also called aphid lions . This is why they are known to gardeners as beneficial insects, whereas otherwise they belong to the less well-known groups of insects. Some species occur in high population densities.

The eggs are usually laid on leaves, bark or other parts of the plant near aphid colonies; in contrast to the eggs of lacewings, they have no or only a very short stem.

Larval development

The larvae of the diurnal have very well developed striding legs and showy, curved mouthparts . Compared to lacewing larvae, they are less bristled and have no bumps on the sides of the body. One larva eats around 20 aphids a day. Most species overwinter as larvae that are mature enough to pupate and that have wrapped themselves in a cocoon in their hiding place, such as a hollow plant stem.

Systematics

The day-like are not closely related to the lace flies, despite their external resemblance. Within the reticulated wing their closest relatives are likely to be found within a taxon of dusty , catchy , Dilaridae and Berothidae .

The diurnal occurring in Central Europe belong to the following types:

literature

  • K. Honomichl, H. Bellmann: Biology and ecology of the insects. CD-Rom, Gustav Fischer Verlag, Stuttgart 1998, ISBN 3-8274-0760-5
  • E. Wachmann , C. Saure: Netzflügler, mud and camel neck flies - observation, way of life . Naturbuch Verlag, Augsburg 2001, ISBN 3-89440-222-9

Web links

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