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Keyword: Insects |
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 8 von 14 1 2 3 4 5 6 7 8 9 10 11 12 13 14 | | | | Orthoptera differ from other insects in the following ways: they have 2 pairs of wings, biting and chewing mouth parts , 3 simple eyes as well as compound eyes , a number of different wire-like sensors, a saddle-like Pronotum, hind legs which make them capable to jump, organs for the... | | |
| | Hylaeus | | ...is tinctoria) and yarrow (Achillea millefolium).
Hylaeus reproduce either once or several times a year. The females lay their eggs in nests, which are constructed in hollow plant stems, dead wood or often in the galleries of beetles or other insects. After oviposition (egg laying) the nest is sealed. The larvae overwinter in the nests. Wasps of the family Gasteruptionidae are natural enemies of Hylaeus as their larvae feed on the brood of Hylaeus. | | |
| | Plant-parasitic Hemipterans - Sternorrhyncha | | Sternorrhyncha are a suborder in the order Hemiptera. This suborder is divided into 5 superfamilies, namely aphids (Aphidoidea), scale insects (Coccoidea), Psylloidea, whiteflies (Aleyrodoidea) and Phylloxeroidea. The Sternorrhyncha are common and widespread throughout the world. There are approximately 8,000 species. Some 1060 species occur in Central Europe. Sternorrhyncha reach body len... | | |
| | In some species, the front legs are specially designed to grasp prey. The hind legs can be formed to jump or row. The feet of these insects have 1 or 2 joints. | | |
| | Sternorrhyncha live in rural areas and feed on the juices of various plants. While scale insects are not very flexible and usually remain in one place, aphids move relatively freely. Leaf fleas move by jumping. | | |
| | The head of the bee wolf is big and visibly wider than the front section of the body. The antennae are short and thicker in the middle and point forward during flight. An important characteristic of these insects is the whitish-yellow marking on the forehead, which sometimes resembles a twice or trice jagged crown. The crown-like marking differs on each bee wolf. The males have large mandibles on the head to mark out territory and attract females in the mati... | | |
| | ...i-open habitats such as forest edges, clearings, box, trees, lawns, gardens, hedgerows, bogs and swamps, where it can be found as a mature adult in herbal layers and shrub layers from August to October.
The autumn spider is diurnal and feeds on insects. It builds a relatively small orb-web which is often close to the ground, The web is not more than about 1.5 metres from the ground. The autumn spider is usually found upside down in the centre of its web or near the edge , waiting for prey. ... | | |
| | Green long-legged flies prefer to be in the vicinity of small rivers, streams and ponds. They feed on honeydew, which they find on the leaves of plants, but they mainly survive by preying on worms, small insects and their larvae. | | |
| | ...r eggs on rotting plants, under bark or in reeds, using a special ovipositor which enables them to bore holes. After hatching, the larvae feed initially on the surrounding plant substrates. In a later stage of their development they prey on small insects, just as the adultsdo. After the last larval stage, the larvae pupate. The pupae are spun in a cocoon of silk and have long breathing tubes. | | |
| | ... be sucked up by the larvae. This takes 2-3 minutes. Finally the larva leaves the emptied skeleton and creeps forward back into the water. Cannibalism can become so prevalent among the larvae that they prefer to eat each other than to attack other insects. | | |
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