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| Dune robberfly | | ...the order Diptera. In Germany, they are commonly found in moraine landscapes (a mass of rocks and sediment swept along and deposited by a glacier), especially in the northwest, as well as in sandy riversides or dunes.
The dune robberfly reaches body lengths of 13-20 mm. The abdomen is grey; the upper surface is covered with large brown spots. The legs are long, strong, and black.
Dune robberflies live in sandy places. They prey on other insects and are very good hunters. They often sit on ... | | |
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| The life expectancy of spiders varies. The growth of the body is severely limited by a rigid external skeleton. When Araneae want to shed their skin they retreat into hiding and stop eating. While most spiders hang from a thread while they are shedding their skin, tarantulas lie on their backs. | | |
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| The individual body segments of insects are solid and are protected with plates of Chitin (back, abdomen and side plates). Insects breathe with the help of tracheae, in addition to various glands in the spaces between these plates. Insects sense their environment wi... | | |
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| In almost every environment, mosquitoes live on bodies of water. The exceptions to this are the polar regions, deserts and altitudes of above 1500 metres. The body shape of mosquitoes varies but rarely exceeds 15 mm in length. Their bodies are slender, with relatively long legs. The wings are membranous and sometimes scaly. The head has 2 long antennae with many segments. The females also have a proboscis. The... | | |
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| The fly can reach a body length of 14 to 18 mm. It has a dark brown abdomen, the second segment of which has yellow, reddish-yellow or ochre wedge-shaped spots. The drone fly has black compound eyes, which are connected by hairy bends above and below. The females’ eyes ar... | | |
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| ...female drone flies lay their eggs in sewage treatment plants and other muddy or foul waters. The larvae have a breathing tube, which is up to 100 mm in length. Therefore they are known as rat-tailed maggots. The larvae of drone flies develop to a body length of up to 20 mm. Due to the fact that they filter feculent particles from the water, they contribute to the clarification of water. | | |
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| Vespinae, with the exception of hornets, belong to the colony building Paper wasps, another category of Vespidae which are often difficult to distinguish. Vespinae are larger than the other Vespidae, the body being broader which is the decisive criterion for differentiation.
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| Median wasp | | The median wasp (Dolichovespula media) is a species in the family of Vespidae. It is widespread and common from Europe (southern Europe, mainly in the mountains) to East Asia. The queens reach body lengths of 18 - 22 mm, the workers 15 - 19 mm, and the drones 15 to 19 mm. | | |
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| Tabanus sudeticus | | Tabanus sudeticus are the largest species of horse fly in Central Europe. They are widespread throughout the entire Palearctic eco-zone.
Tabanus sudeticus reach body lengths of 19-25 mm. Their base colour is grey-brown. Their compound eyes are dark brown. The thorax of these flies is olive-brown to grey and has 3 weak longitudinal lines, which are somewhat brighter in colour. The dark brown segments at the re... | | |
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| Graphosoma lineatum | | ...(Heteroptera), the superfamily Pentatomoidea, and the family stink bugs and shield bugs (Pentatomidae). Graphosoma lineatum are common and widespread in Central Europe, Southern Europe, Asia Minor and the Middle East. Adult Graphosoma lineatum reach body lengths of 8 - 12 mm. Their colouration and markings are very conspicuous and warn possible predators that they are inedible. | | |
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