UC IPM Online UC ANR home page UC IPM home page


SKIP navigation


How to Manage Pests

Key to Identifying Common Household Ants

Quick tips to identifying ants—Ant anatomy

Antennal Club
Petiole Nodes

What to know about ant anatomy

  • Correct ID is essential because different species require different controls.
  • When identifying ants, it is important to know how to count petiole nodes and antennal segments.
  • Other structures, such as the eyes, thoracic spines, and gaster, are important when distinguishing ant species.

How well do you know your ant anatomy?

Helpful identification tips

Ready to identify ants?

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2017 The Regents of the University of California. All rights reserved.

For noncommercial purposes only, any Web site may link directly to this page. FOR ALL OTHER USES or more information, read Legal Notices. Unfortunately, we cannot provide individual solutions to specific pest problems. See our Home page, or in the U.S., contact your local Cooperative Extension office for assistance.

Agriculture and Natural Resources, University of California

Accessibility   Contact webmaster.