The Insect Orders
The 1 million or so species of the insect world (Class: Insecta) are divided into about 30 major groups called Orders, although there is dispute among entomologists on these divisions.
The orders are further split into Families,
whose names all end -idae. Carabidae for example is the Beetle family
known as the Ground Beetles and the Muscidae is the Fly family
containing the house-flies. Each family contains a number of Genera containing a number of closely related Species.
A species is an individual kind of insect or other organism and each
has a scientific name that can be understood all over the world. This
scientific name is always printed in italics and it consists of the
name of the genus and a specific name.
To illustrate this, take a Rose Chafer, scientific name Cetonia aurata. This beetle can be classified in the following way:
Kingdom: Animalia (Animals)
Phylum: Arthropoda (Arthropods - meaning 'jointed leg')
Order: Coleoptera (Beetles)
Family: Scarabaeidae (Dung Beetles & Chafers)
Species: Cetonia aurata
In the UK, there are 24 Orders of insect (and 3 orders of non-insect Hexapod), and each Order contains varying numbers of Species, from 1 (Mantodea) to over 7,000
(Hymenoptera) British representatives.