Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
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Calendar
Upcoming Events

Spring 2021 gathering in Louisiana, April 28-May 2

National Moth Week photos of insects and people. Here's how to add your images.

Photos of insects and people from the 2019 BugGuide Gathering in Louisiana, July 25-27

Discussion, insects and people from the 2018 gathering in Virginia, July 27-29

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama


Taxonomy
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Species Urophora quadrifasciata - Four-barred Knapweed Gall Fly

fly - Urophora quadrifasciata - male Four-barred Knapweed Gall Fly - Urophora quadrifasciata - female very tiny fly - Urophora quadrifasciata Urophora quadrifasciata - Four-barred Knapweed Gall Fly - Urophora quadrifasciata - male Urophora quadrifasciata - Four-barred Knapweed Gall Fly - Urophora quadrifasciata - male diptera - Urophora quadrifasciata - female Pennsylvania Fly for ID - Urophora quadrifasciata - female Rhagoletis - Urophora quadrifasciata



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