This section contains archived content made available for reference, research, or record keeping purposes. These materials are not actively maintained and may not meet current accessibility standards. All links have been removed. Visit our current website for updated pages.

UC IPM Online UC ANR home page UC IPM home page

UC IPM Home

SKIP navigation

 
  Printer-friendly version
 
Figure

The life cycle of a predaceous midge (Aphidoletes aphidimyza). Eggs are orangish red, oval, and about 1/80 inch (0.3 mm) long. Larvae develop through three instars, are pale yellow to red or brown, and at maturity are about 1/10 (2.5 mm) long. Pupae are orange to brown, about 1/12 (2 mm) long, and occur beneath plants in litter where they may form cocoons made from soil particles, excrement, and aphid cast skins. Adults are delicate flies with long slender legs.

Illustration from the Natural Enemies Handbook: The Illustrated Guide to Biological Pest Control. Oakland: Univ. Calif. Div. Agric. Nat. Res. 3386, p. 98. (larvae from Peterson 1960, reprinted with permission from Helen H. Peterson; adult from Quayle 1932)

Statewide IPM Program, Agriculture and Natural Resources, University of California
All contents copyright © 2016 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.

Acknowledgements Staff-only pages Subscribe (RSS) Contact UC IPM

Agriculture and Natural Resources, University of California

© 2016 Regents of the University of California Division of Agriculture and Natural Resources Nondiscrimination Statement

Accessibility   /PMG/FIG/neh-f8-12.html?srcPage=PMG%2FFIG%2Fneh-f8-12.html revised: June 24, 2016. Contact webmaster.