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Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Flies (Diptera) » "Acalyptratae" » Tephritoidea » Fruit Flies (Tephritidae) » Tephritinae » Myopitini » Urophora » Canada Thistle Stem Gall Fly (Urophora cardui)

Species Urophora cardui - Canada Thistle Stem Gall Fly


The information below is based on images submitted and identified by contributors. Range and date information may be incomplete, overinclusive, or just plain wrong.

Contributed Images Map No Images   Images
Range map for Canada Thistle Stem Gall Fly
Credits: Generated with MapServer. BugGuide integration kindly provided by Mike Boone.

Hover over black occurrence boxes to see number of images submitted. Log in to make states, months and boxes clickable.
JanFebMarAprMayJunJulAugSepOctNovDec
British Columbia     2      
Colorado    22      
Idaho     1      
Illinois     6      
Iowa   1  16    
Maryland    31      
Minnesota  3 1       
Montana     1 1    
Nebraska     2      
New Brunswick     3 1    
New Hampshire     1      
New Jersey    1   12  
New York     32     
North Dakota    26      
Ontario    28  54  
Oregon         1  
Quebec     12     
Saskatchewan     3      
Utah     3      
Vermont     1      
Washington    14      
Wisconsin    21  2   

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

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