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Four-barred Knapweed Gall Fly - Urophora quadrifasciata TL: ~2 mm.<br /> <br /> Native to Europe, introduced in North America to control knapweed (Centaurea sp.). Females lay eggs in half-grown flowers using their ovipositors. <br /> <br /> Habitat: Attracted to a light; semi-rural area Four-barred Knapweed Gall Fly,Geotagged,Summer,United States,Urophora,Urophora quadrifasciata,fly,gall fly,tephritidae Click/tap to enlarge PromotedSpecies introCountry intro

Four-barred Knapweed Gall Fly - Urophora quadrifasciata

TL: ~2 mm.

Native to Europe, introduced in North America to control knapweed (Centaurea sp.). Females lay eggs in half-grown flowers using their ovipositors.

Habitat: Attracted to a light; semi-rural area

    comments (4)

  1. View Calbost Niel's profile
    Calbost Niel
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    Amazing Posted one year ago
    1. View Christine Young's profile
      Christine Young
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      It was a great find! Posted one year ago
  3. View Ernst's profile
    Ernst
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    A brilliant bit of fly Maschinerie, looks like it has jet propulsion. Posted one year ago
    1. View Christine Young's profile
      Christine Young
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      Yes! A tiny jet fly! ;) Posted one year ago

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The Four-barred Knapweed Gall Fly

''Urophora quadrifasciata'' is a species of tephritid or fruit flies in the genus ''Urophora'' of the family Tephritidae. The host plant for the larvae is usually a knapweed , and because of this, it is used to control ''Centaurea stoebe''.

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Similar species: True Flies
Species identified by Christine Young
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By Christine Young

All rights reserved
Uploaded Aug 14, 2021. Captured Aug 14, 2021 00:55 in 5 East St, New Milford, CT 06776, USA.
country flag of United States of America Explore United States of America 34,919 8,638 8
  • Canon EOS 90D
  • f/5.0
  • 1/197s
  • ISO100
  • 100mm
Captured in the summer. More summer photos.

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