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| ... markings vary; they can be more or less pronounced, and are usually brown or light brown in the females, with a yellow stripe on the upper surface, within which a marking appears over time which resembles a heart or a spear. Towards the back of the abdomen, indentations are visible. The opisthosoma of the males is similar but darker and shinier. | | |
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| These spiders have 2 claws on their heads, hence the name "two- clawed-spider". The abdomen is brightly coloured. Crab spiders have 2 very long pairs of front legs. In the males, the first pair of legs can be five times longer than the hind pair of legs. The two pairs of front legs are slightly bent in resting position and face forward. Th... | | |
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| Adult soldier beetles reach body lengths of 1. 2 - 28 mm. Their bodies are long and mostly flat. Most species are strongly coloured with fine hair. The entire abdomen is covered by the wing covers (elytra ). Soldier beetles have long, slender legs. | | |
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| Adult half-spotted stink bugs reach body lengths of 10 - 15 mm. The body is black and red in colour. The pronotum is red with black edges and bears 10 black spots, which vary in shape and sometimes converge. The edges of the abdomen (connexives) have stripes lengthwise. The underside is spotted black. Half-spotted stink bugs can be confused with Graphosoma lineatum or Graphosoma italicum. | | |
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| ... a tooth-like appendage, to capture prey and facilitate their transport to the nest. Different species of the genus Cerceris can be recognised by the shape of their mouthparts. The abdominal segments are strongly constricted at the nodes so that the abdomen appears to have a strongly undulating surface. | | |
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| Adult Coranus aegyptius reach body lengths of 9-10 mm. Their body shape resembles that of a bug from the genus Rhinocoris, but they are much smaller. The body colour varies from grey-brown to dark grey. The abdomen, however, is red in colour. The head of these insects is slightly round in shape. The distance between their eyes and the base of the antennae is about the same distance as between the eyes and the back of the head. The fourth segment of the antenna... | | |
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| On the underside of the chest (thorax) are the defensive glands which emit an unpleasant-smelling secretion as a defense mechanism. This can be squirted over a distance of several 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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| Adult Eupeodes corollae reach body lengths of 7 - 11 mm. Their antennae are yellow-brown to dark brown in colour. The scutellum is hairy and light yellow in colour. The legs and hips are black and yellow. The abdomen is oval and has 3 yellow stripes, which run to the lateral edges. In the females these stripes are discontinuous not linked, while in the males they are usually weakly connected. | | |
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| ...he females lay their eggs in muddy, often heavily polluted, stagnant water (for example, cesspools, septic tanks or clarifiers). The larvae hatch after a few days. The larvae breathe through a "snorkel", which is attached to the tip of the abdomen and runs up to the surface of the water, hence the name rat-tailed maggots. The larvae can reach lengths of 20 mm and feed on putrid sludge and dead organic matter, which they filter from the water. They make an important contribution to water clari... | | |
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| The larvae are equipped with a kind of snorkel (hence the name rat-tailed maggot), up to 100 mm in length which has its base on the abdomen of the larvae and reaches up to the water's surface. The larvae pupate after 2 weeks. | | |
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