Presenting… The wonderful diversity of bees

Bees are one of the major groups of insects, numbering about 20,000 described species. But only a very small proportion of bees are honeybees or bumblebees - most species are actually solitary bees.

Bee specimens

These specimens from the Museum’s collection have been chosen to give an impression of bee diversity, from the largest and most brightly coloured to some of the smallest and most inconspicuous. The Museum has one of the most important bee collections in the world, containing specimens collected over 200 years ago and from many different countries. The collection is a unique record of bee biodiversity and is used regularly by scientific researchers, artists and educators.

Bees exist in a great diversity of shapes, sizes and colours. In particular the smaller species do not look like bees at all and are often mistaken for small wasps or flies.

Many bees are specialised as pollinators and have evolved together with flowering plants for over 100 million years. In return for pollination services, plants provide nectar, pollen and other substances to bees. The wonderful variety of bees and flowering plants that we see today is a result of this close relationship.

Giant Bee

Wallace’s Giant Bee
Megachile pluto

Although most are specialist pollinators, about 10 per cent of bee species are parasites of other bees, taking advantage of the nectar and pollen collected by their host to feed their own young. These parasitic bees can be quite strange in appearance - not needing to collect pollen they have typically lost most of their hair and appear more like wasps.

Wallace’s Giant Bee is the world’s largest bee. This specimen (left) is one of the Museum’s greatest treasures and is on open display for the first time. It was captured by the Victorian explorer and naturalist Alfred Russel Wallace in 1859. Only found on the Indonesian island of Bacan and its two neighbouring islands, this giant was believed to be extinct until it was re-discovered in 1981.

The massively enlarged mandibles of the female are used for collecting tree resin and excavating tunnels in termite nests.



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