Insect Identification Services at Oneida County Extension
When you encounter an unfamiliar insect—whether it’s in your garden, home, or wooded property—having access to reliable identification services can make all the difference. Oneida County Extension, part of the University of Wisconsin–Madison Division of Extension, offers free, research‑based insect identification assistance to help residents better understand local species and how to manage them.
A Local Resource for Accurate Insect Identification
Residents can bring in insect samples, photos, or detailed descriptions during office hours or by appointment. The Extension team will review your submission and help determine the species, whether it poses risks, and what management (if any) is recommended.
When Local Expertise Meets Statewide Support
If a sample requires more specialized analysis, our office will contact the UW–Madison Insect Diagnostic Lab, which processes approximately 2,500 insect samples each year from across Wisconsin. The Insect Diagnostic Lab provides expert identification of insects, spiders, insect‑damaged materials, and other arthropods. The lab was established in 1978 to support Extension offices like Oneida County and remains a highly trusted statewide resource.
Online Tools You Can Use at Home
For residents who prefer to start the identification process themselves, the University of Wisconsin also offers an Online Insect Identification Tool featuring more than 200 insect species commonly found in Wisconsin and the Great Lakes region. The tool allows users to search insects by category, appearance, or name and provides high‑quality photos and detailed descriptions.
This can be a helpful way to narrow down possibilities before submitting a sample or contacting the extension office with questions.
How to Submit an Insect for Identification
You can submit samples in several ways:
1. Bring a sample or photo to the Extension office
Address:
5350 College Drive
Northwoods Center, Room 121
Rhinelander, WI 54501
Phone: 715‑365‑2750
Hours: Monday–Thursday, 8:00 a.m.–12:00 p.m., or by appointment.
2. Email photos or questions
If you can take clear photos, the staff may be able to identify the insect without needing a physical sample.
3. Send the sample to the UW Insect Diagnostic Lab
The lab accepts mailed physical samples, emailed images, and walk‑in submissions for more complex cases. Visit the website for detailed mailing instructions.
Why Insect Identification Matters
Accurate insect identification can help you:
- Determine whether a pest poses a threat to your home, garden, or health
- Identify beneficial insects worth protecting
- Avoid unnecessary pesticide use
- Understand seasonal insect behavior and recurring local issues
- Make informed decisions about outdoor projects and landscaping
With support from local Extension educators and statewide entomology experts, Oneida County residents have access to some of the best insect identification resources in Wisconsin.