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Keyword: Flea |
Overview - a b c d e f g h i j k l m n o p q r s t u v w x y z |
Seite 1 von 1 | | | | Nektar | | Nektar ist eine wässrige Flüssigkeit, die von Pflanzenblüten ausgeschieden wird, um Tiere anzulocken, die den an der Blüte befindlichen Pollen aufnehmen und weiter verfrachten sollen. Nektar enthält z. B. Zuckerarten (Saccharose, Glucose, Fructose), Mineralstoffe und Duftstoffe. Nektar dient vielen Tieren als Nahrung. Den Honigbienen dient er zur Herstellung von Honig. | | |
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| Willow flea beetle | The willow flea beetle (Crepidodera aurata) belongs to the genus Crepidodera in the order beetles (Coleoptera), the superfamily Chrysomeloidea, the family leaf and flea beetles (Chrysomelidae), and the subfamily Galerucinae (Alticinae). Scientific synonyms for Crepidodera aurata are Disonycha spp. and chalcoides aurata. The willow flea beetle is common in Europe and Asia. This species can be found in every kind of environment , and is not endangered.
Crepidodera aurata reach body lengths of 2.5-3.5 mm. Its elongated and oval shaped body has a metallic sheen. The entire upper ...
...reenish-gold in colour; that of the males is greenish-blue, blue or purple. Longitudinal rows of dots are visible on the forewings (elytres). The brown legs to the ankle are much thicker in the upper section of the rear pair, with which the willow flea can jump very far (up to hundred times its own body length).
The life expectancy of the adult beetle is 8-9 months. They are usually found in the countryside, moist forests, forest edges, wet meadows, marshes, meadows and heathland are their ...
...dult beetle is 8-9 months. They are usually found in the countryside, moist forests, forest edges, wet meadows, marshes, meadows and heathland are their preferred habitats. They can also be encountered in natural gardens and parks.
The willow flea beetle is active during the day from May-October (after overwintering). During this time it is mainly seen on willows and poplars, whose leaves it eats. The willow flea beetle nibbles roundish holes into the leaves.
At age 7-8 months, the willow flea beetle is sexually mature. In June/August the beetles mate. The fertilized females lay their eggs on the leaves of the forage plants of their larvae. The eggs are yellowish and spindle-shaped.
The larvae hatch in summer. They are 5-6 mm long, b... | | |
| | Leaf beetles | | Leaf beetles (Chrysomelidae) are a large family in the beetle order. In Germany, there are over 470 different species and there are 50,000 species around the world. There are many different kinds of Leaf beetle: Flea beetles, Seed beetles, Tortoise beetles, Chrysomenlinae (Colorado potato beetle, Chrysomela populi, Chrysolina fastuosa), Clythrinae, Criocerinae (Cereal leaf beetle, Common asparagus beetle, Scarlet lily beetle), Cryptocephalinae, Donaciinae (Donac... | | |
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