Step three - confirm identification with photographs and species accounts
The new technique could help amateur naturalists and professional field workers in the front line of monitoring decades of decline in Britain's native bumblebees.
The decline has been measured only for a few very rare species but it is clear from surveys that numbers of even the currently most abundant species have gone down.
Since the 1970s some species have declined by over 60 per cent.
This is because their natural habitats have been slowly reducing since the 1960s when modern farming was introduced. Flower rich habitats are reducing and therefore nectar - essential to the bees survival is becoming more scarce.
The aim of the guide is to gain a general and more specific idea of insects - how they develop, how they live.
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