Sunday, August 3, 2008

Collecting Food for Winter

Two wasps are out busy collecting pollen for the hive. They are actually very small but thanks to macro you can see them now very clearly.

Updated

Flies in the Diptera family Syrphidae are commonly known as hoverflies, flower flies, or Syrphid flies. As their common names suggest, they are often seen hovering or nectaring at flowers; the adults of many species feed mainly on nectar and pollen, while the larvae (maggots) eat a wide range of foods. In some species, the larvae are saprotrophs, eating decaying plant and animal matter in the soil or in ponds and streams. In other species, the larvae are insectivores and prey on aphids, thrips, and other plant-sucking insects. Aphids alone cause tens of millions of dollars of damage to crops worldwide every year; because of this, aphid-feeding hoverflies are being recognized as important natural enemies of pests, and potential agents for use in biological control. Some adult syrphid flies are important pollinators.

About 6,000 species in 200 genera have been described. Hoverflies are common throughout the world and can be found on every continent except Antarctica.[1] Hoverflies are harmless despite their mimicry of the black and yellow stripes of wasps, which act to ward off predators.

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