Hoverflies

Hoverflies are conspicuous and attractive insects that are often found in gardens. With careful observation the species (42 are common) may easily be identified by using this non-technical guide. Like bees, hoverflies pollinate many flowers whilst feeding on nectar and pollen and their larvae also assist the gardener by destroying aphid colonies. Here their biology is introduced and projects are suggested which amateurs and school students can carry out with a view to publishing the results. This book will enable sixth formers and their teachers, and amateur naturalists to name all the commonly encountered species and to learn about their natural history. It is hoped the book will encourage them to find out more, both by further reading and particularly by their own investigations. Areas where further original work is needed are stressed and especially those where expensive apparatus is unnecessary.