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| ...lator reach body lengths of 10 - 18 mm. The base colour of the body is black. Parts of the body are red in colour. The abdomen is larger at the posterior end. A striking feature of the Gasteruption jaculator is the upright position of the abdomen in flight. In resting position, the abdomen is pulled in a slight downward or upward curve. The wings are then folded along its length. The femurs of Gasteruption jaculator are thick at the end like clubs. | | |
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| After mating, the fertilized females lay their eggs singly on bumblebees, ambushing the workers in flight. They cling to the host animal and lay their egg between the abdominal segments. The larvae hatch quickly and then eat their way into the abdomen of the host and hollow it out gradually. Sicus ferrugineus larvae pupate and overwinter in the hosts. | | |
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| ...ined skimmer establishes a territory and the males occasionally patrol this near the surface of the water. Competing species of dragonflies are systematically expelled from the area. The black-lined skimmer is very shy and always maintains a greater flight distance. Females usually remain hidden in the riparian vegetation and only rarely appear. They hunt in the evening and can only be observed flying in daylight during the mating season. Mating starts in the air and is completed after 5 - 10 minutes ... | | |
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| Mating takes place in late spring or early summer in sunny weather. The fertilized females lay their eggs from the air while clinging to the male (tandem flight). The eggs are attached to plant parts located under the surface of the water. | | |
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| Fertilized females lay their eggs in flight, on sedentary or slow-flying hosts (bees, bumble bees or wasps). The larvae hatch and burrow into the abdomen of their host animals and feed on their insides until they are completely empty. They pupate and overwinter in the empty skin of the host. ... | | |
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| The flight behaviour of mosquitoes depends on the prevailing weather and light conditions. They can fly at an altitude of up to 100 metres. In cold or rainy weather they usually stay close to the soil. | | |
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| They fly in the months of July to September. The adult ruddy darter prefers to live on small bodies of water. It feeds on small insects caught during flight. | | |
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| ...l decimetres. The abdomen is black at the edges (connexivum) and has yellowish-white markings. The side margins are densely dotted. The wing covers usually have dark brown patches of colour. Rhaphigaster nebulosa are clumsy fliers and buzz loudly in flight. | | |
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| ...ach breeding cell. After 2-3 days the white maggot-like larvae hatch, and are fed with captured honey bees by the mother. The female larvae clearly receive greater consideration than the males. The larvae live inside the body of the bees. After each flight for new supplies of bees the mother bee wolf seals the entrance to the tunnel, to protect the larvae from intruders (eg beetles). When the nest is located on steep slopes, however, the entrances stay open. About a week after hatching, the larvae spi... | | |
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