Invertebrate Zoology/Insects

Chapter 15 ~ The Arthropods
Class Insecta

Contents ~ Introduction ~ Protozoans ~ Metazoans ~ Sponges ~ Cnidaria
Ctenophores ~ Flatworms ~ Nemerteans ~ Pseudocoelomates ~ Annelids ~ Mollusks
Arthropods ~ Chelicerates ~ Crustaceans ~ Insects ~ Echinoderms

Insect larva ~ Barnacle ~ Long-jawed spider
The insects are a diverse group. Shown: moth larva, Marsh fly, and damselfly.
Phylum Arthropoda
Subphylum: Hexapoda
Class: Insecta
Orders

Subclass Apterygota

  • Symphypleona - globular springtails

Subclass Archaeognatha (jumping bristletails)
Subclass Dicondylia

  • Monura - extinct
  • Thysanura (common bristletails)

Subclass Pterygota


Introduction to the InsectsEdit

In terms of number of species described, the Subphylum Hexapoda is the largest in the Phylum Arthropoda. Hexapods (meaning "six legs or feet") include the insects (Class Insecta), which dominate terrestrial environments on earth. The subphylum also includes several groups of wingless arthropods of uncertain placement; namely the orders: Diplura, Collembola, and Protura.

Last modified on 12 October 2007, at 02:56