York Museums Trust has an extensive collection of invertebrates, which is stored at the Yorkshire Museum.
Entomology is the study of insects. Someone who studies insects is called an entomologist. There are around 141,500 specimens in the entomology collections at the museum. These include very important collections of British beetles, butterflies, moths, ants, bees, wasps and flies.
The museum doesn't just have one of each type of insect, it has lots. This is so the specimens can be studied and compared as they are all very slightly different, just like one human is different to another!
As you can see from the photos on this page, the specimens are kept in cases like drawers with glass tops for viewing. These drawers are then kept in chests to keep the light out. Exposing the specimens to light would damage them over time. The insects are usually preserved by being sprayed with a special solution to protect them from decaying.
The insects are usually pinned to the base of the drawer with a pin through their body. This is done after the insect has been caught and is dead.
Specimens like these are used by scientists studying natural history. They provide a record of what creatures were around at certain times.
Most of the specimens are from before 1950 and some are even from Victorian times. In those days people did not worry as much about animal welfare. Nowadays we have excellent digital cameras and can take good photographs of live insects instead.
However, sometimes it is necessary to have the real thing in order to study the insect's body (anatomy) close up. Identifying specimens can then help us to preserve their habitat and ensure they do not die out.