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Keyword: Sand | | | Seite 1 von 1 | | | |
| Dune robberfly | | ...lonicus albiceps) belongs to the family robber flies, in 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 the bare, hot sand waiting for their prey which they catch and sting in the air.
The dune robberfly is active from June to September. The females have a ring of spikes at the end of their ovipositors which they use to make a hollow in the sand to lay their eggs in. The larvae usually move deeper into the sand after hatching. | | |
| | ...re very shy and only appear after prolonged periods of sunshine.
They prey on insects and arthropods. This species is endangered. Birds and other insect eaters pose a threat, especially during mating.
The fertilized females lay their eggs in sand. When the larvae hatch, they dig a burrow, which is connected to the surface of the sand by a steep upward path. The larvae also feed on insects (on the sand’s surface) and they draw back into their dens when the temperature drops. | | |
| | | ...atly. There are plant sucking species, predatory species and parasites such as the bedbug (Cimex lectularius). Their habitats range from forests and meadows to human dwellings. Some species prefer humid locations such as swamps, while others live in sand or salt, or in or on water. In rare cases they even appear on the open sea. | | |
| | Moth flies usually feed on plant juices or nectar, however some species do not eat at all. The females of the genus Sycorax sting frogs and suck their blood. The tropical Sand flies are known to tranmsit diseases. As moth flies are not good flyers , their move often is completed by the wind, but with very good control.
The females often lay their eggs (individually or as a clutch) close to water. The Psychoda phala... | | |
| | Hylaeus | | ...have bright spots on the chest and legs. Since their bodies are hairless, these bees cannot carry pollen externally. Hylaeus carry pollen in a crop (a pouch in the foregut).
Hylaeus prefer to live on forest edges, in parks and gardens, hedgerows,sand pits and clay pits. The adult bees are active from May to September. They feed on the nectar and pollen of various plants such as aster, daisy or sunflower (Asteraceae), bell flowers (Campanulaceae), legumes, peas, beans or pulses (Fabaceae), min... | | |
| | The black-lined skimmer prefers rocky edges of water with many stones, sand pits and loose reeds or rushes or standing water (lakes, ponds, pools) or beaches. Adults are found from June to September. They live off insects. The black-lined skimmer establishes a territory and the males occasionally patrol this near the surfac... | | |
| | Andrena flavipes live in diverse habitats, such as forest edges, parks, gardens, and sand, gravel or clay pits. They feed on a wide range of flowering plants from which they obtain nectar and pollen. | | |
| | Field digger wasps are active from July to October. They prefer to live on roadsides, embankments or sand pits. Sandy or loamy soils, suitable for nesting, are of particular interest. Field digger wasps, and their brood, feed on flies. In addition, they seek out Umbelliferae or animal faeces (eg cow dung). When the field digger wasp sees a fly, it sneaks up, jumps... | | |
| | ...asps. In the latter case they are not able to distinguish between already occupied and unoccupied nests, which often leads to violent clashes between them and the owners of the nest in the entrance area. The female digs a nest at which the excavated sand or clay is piled around the entrance. | | |
|  | | Red-banded Sand Wasp - Ammophila sabulosa | | >> Picture |
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