UC IPM Online UC ANR home page UC IPM home page


SKIP navigation


How to Manage Pests

Identification: Natural Enemies Gallery


spiders flower spider funnel weaver spider grass spider cobweb weaver spider jumping spider

Click on image to enlarge

Phylum: Arthropoda
Class: Arachnida
Order: Araneae

Common prey: Predaceous on a wide variety of insects and arthropods.

Commercially available: No


All spiders are predaceous; they eat mainly insects, other spiders, and related arthropods. Some species capture prey in webs. Others stalk insects across the ground or vegetation or lay in wait and pounce on them. About 50 families of spiders occur in the U.S.

Spiders are classified in the arachnid group along with mites, and are very common invertebrates. Unlike insects, which have six legs and three main body parts, spiders have eight legs and two main body parts. Spiders try to avoid people and most are harmless to humans.

For more information on spiders, see:

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2014 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   /PMG/NE/spiders.html revised: April 25, 2014. Contact webmaster.