Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

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


TaxonomyBrowseInfoImagesLinksBooksData
Photo#554259
UV Knapweed Seed Head Fly - Urophora quadrifasciata - male

UV Knapweed Seed Head Fly - Urophora quadrifasciata - Male
Burlington, Middlesex County, Massachusetts, USA
July 29, 2011

Images of this individual: tag all
UV Knapweed Seed Head Fly - Urophora quadrifasciata - male UV Knapweed Seed Head Fly - Urophora quadrifasciata - male

Moved
Moved from Flies.

Agree with Ted…
Wing pattern and other features match. This is a male.

See reference here.

 
Another common name...
I found this common name used on several websites: UV Knapweed Seed Head Fly. The "UV" refers to the U and V patterns on the wings.

Fruit Fly
Resembles Urophora quadrifasciata but I am not 100% sure; please wait for an expert.

 
Yes
Thanks Ted, I searched through the fruit fly images and somehow missed this one. The wing pattern looks similar.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.