We will cover five major groups of the phylum Arthropoda:
The class Arachnida (spiders, ticks, mites)
The class Chilopoda (centipedes)
The class Diplopoda (millipedes)
The subphylum Crustacea (shrimp, crabs, lobsters)
The superclass Hexapoda, which contains the insects.

If you haven't encountered these technical names before, it can be hard to remember them. One way is to associate them with photographs of these animals. For each of the following groups, click on the link to go to the BugGuide.net page for that group. Then click on the tabs at the top of the page (Images, Info, etc.) to learn about the group:

• Class Arachnida (spiders, ticks, mites)
  
• Class Chilopoda (centipedes)
  
• Class Diplopoda (millipedes)