Definition: Actiidae, also known as the 'actorids', are a group of nearly 50 species of tiny, small-bodied insects that make up a diverse family in the order Procydinae. These creatures are the only true actors, with their bodies being almost completely flat and they have a highly specialized role to play in the insect kingdom. Actiidae belong to the subfamily Actiinae, which is one of the most diverse taxonomic groups within the family Procydinae. The term "actor" comes from Greek meaning 'actress' or 'model', and this name was given to these tiny insects based on their appearance and role in the insect kingdom. Actiidae are known for their ability to be incredibly small, making them invisible to the naked eye. They typically have slender, almost flat bodies that can weigh only 0.15 to 0.2 mm (0.004 to 0.008 inches) in length and they are usually found in close proximity to their hosts. These insects are often kept as pets or used for experiments. The function of the actiidae is crucial in many ecosystems, including those involving pollination and seed dispersal. They can be used to transport pollen between plants and help ensure the survival of plant species by preventing them from being dispersed by animals. The tiny bodies also contribute to the ecosystem through their role as a food source for various insects, such as caterpillars and ants. In summary, the word 'actoridae' refers to the group of nearly 50 species of small-bodied insects known as 'actorids'. This family is the only true actors within the insect kingdom and is involved in the function of pollination, seed dispersal, and food distribution.

Actoridae