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The process of pinning insect specimens is a dry method to preserve and display collections and requires special entomological equipment to accomplish effectively. [1] It is used primarily for hard-bodied, medium to large specimens and is beneficial for easier study and color preservation.
It also preserves the body colors of some insects, such as dragonflies, that would otherwise lose their color, especially if there is a liquid layer to saturate their body tissues. A disadvantage is that, although the insects are quickly stunned by ethyl acetate, it kills them slowly and specimens may revive if removed from the killing jar too ...
Caterpillar inflation is a method of specimen preservation found in insect collecting, used mostly during the 19th and early 20th century. [1] As a method of preservation it has largely been replaced by freeze drying and preservation in alcohol. [1]
As the insect dries the internal tissues solidify and, possibly aided to some extent by the integument, they grip the pin and secure the specimen in place on the pin. Very small, delicate specimens may instead be secured by fine steel points driven into slips of card, or glued to card points or similar attachments that in turn are pinned in the ...
Slides should be checked on an annual basis to check the condition of preserved specimens. [8] Desiccants and freeze-drying: Silica gel or freeze-drying methods can be applied to specimens that require preservation of the shape of a delicate organ such as a flower. Disadvantages of this technique are that the specimen is especially fragile and ...
The chaste tree makes a spectacular lawn specimen, or several can be planted in a row along a driveway or property line. It is also effective as a background plant in a mixed sunny border garden .
Bone, ivory, and antler are rarely attacked by insects, but horn is often seriously damaged by the larvae of carpet beetles and clothes moths. [7] Light, ultraviolet, and infrared. Ivory, bone, and antler should be kept away from bright light such as spotlights or direct sunlight. Bright light can increase the surface temperature of the object.
Preservation is a problem for fairyflies (and other small insects). Their tiny sizes require special methods. Specimens have to be dried, if collected wet, e.g. if ethyl alcohol is used as the killing agent. Drying can make specimens extremely brittle, so additional care should also be taken not to disintegrate them.