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| ...n prone to cannibalism. In water they catch floating prey with their clamp-like mouthparts (mandibles), hold them tight and swim with the living prey intact to the water’s edge. Having found a good landing point, they put their abdomen on the solid ground and move themselves backwards with tracking the prey over the shore. They crush them with their mandibles. The exoskeleton of the prey gets covered over and over again with intestinal secretions. The prey is then kneaded into a pulpy mass which can... | | |
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| Willow flea beetle | | ... beetles and often eat the leaves with the venes of the leaves remaining only. In late summer, the three-month development from egg to adult beetle is complete. The adult beetles overwinter under piles of leaves or in other protected places near the ground.
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| ...he leaves of various trees and bushes until the end of September. These include alder (Alnus), willow (Salix), poplars (Populus), birch (Betula) and hazel (Corylus). At the end of September - beginning of October the alder leaf beetle hides in the ground, where it overwinters. | | |
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| ...e) and braconids (Braconidae), which lay their eggs inside the caterpillars. After hatching, the larvae eat their host from inside out. At the end of July or in early August the caterpillars pupate with their heads upwards. Pupation occurs on the ground near the food plants or on the stalks or branches of other plants. The pupae are initially yellowish-green, later yellowish-brown or grey brown, and are shaped like a boat with a crescent-shaped head, which looks like a thorn on a plant. At the... | | |
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| ...m mid July toAugust), the males can be observed on "patrol" flights, looking for females. During these, they often stay in the air. They fight with rival conspecifics when entering their territory. Mating almost always begins near the ground and often ends at the top of trees or bushes near water. | | |
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| Harvestmen are only active at night and their behaviour is not affected by adverse weather conditions. Female harvestmen lay their eggs in small holes or cracks in the ground.
Due to the intensification of agriculture and forestry habitats have been lost and this is a real threat to many species of harvestmen.
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| Cobweb spiders which live mostly sedentary lifestyles can live a long time. They spin large webs and catch insects at night. Sometimes they hunt for insects on plants or whilst on the ground. Their webs are labyrinth like and are created like cobs. When larger populations occur in a limited space, social communities can develop, in which cobweb spiders combine their webs with those of their neighbours. | | |
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| ...hutch spider is active at night and moves back into narrow cavities in the daytime, as it is very shy The females prey on small insects (mosquitoes, flies or other species of spiders) which they either capture in their k web, or restrain on the ground. They are capable of overwhelming prey much larger than themselves likehouse spiders, for example. Males usually wander around. | | |
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| ...d 8 mm. It is either dirty greenish , grey to dark grey or dark brown in colour, and has a dimpled surface. The diet of the larvae is the same as the adults. If the plant they are on is disturbed while they are feeding, the larvae fall to the ground. Often, they are not able to find their way back to the food plants and run the risk of starvation. | | |
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| ...oured.The antennae have 3 to 7 segments (depending on the species) and widen at the top. By increasing blood pressure, these fins will increase even too. Some species have very broad, externally serrated forelegs, which help them when digging in the ground. | | |
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