Euxesta annonae

(Fabricius, 1794)

cornsilk fly

Euxesta annonae is a picture-winged fly in the Ulidiidae, one of four 'cornsilk fly' documented as pests of sweet corn in Florida. The species has a broad distribution spanning from Florida to Hawaii. Like other cornsilk flies, it exhibits distinctive wing patterning and wing-flapping .

Pronunciation

How to pronounce Euxesta annonae: //juː.ˈzɛs.tə ə.ˈnoʊ.naɪ//

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Identification

One of four Euxesta attacking corn in Florida; distinguished from by specific wing patterning (exact diagnostic features not detailed in available sources). Medium to dark metallic green to black coloration shared with E. stigmatias, E. eluta, and Chaetopsis massyla.

Habitat

Agricultural ; specifically associated with sweet corn ears.

Distribution

Florida to Hawaii; present in the United States.

Diet

Sweet corn ears (Zea mays); has been observed feeding on corn.

Host Associations

  • Zea mays - feeds onsweet corn ears

Behavior

Wing-flapping has been observed in cornsilk flies generally; distinctive wing patterns used in display.

Ecological Role

Pest of sweet corn agriculture.

Human Relevance

Agricultural pest of sweet corn in Florida and Hawaii.

Similar Taxa

  • Euxesta stigmatiasAlso a cornsilk fly pest of sweet corn in Florida, sharing metallic coloration and wing patterning
  • Euxesta elutaThird cornsilk fly attacking corn in Florida; microhabitat differences exist but not detailed in sources
  • Chaetopsis massylaFourth cornsilk fly in Florida corn pest complex, in related

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Sources and further reading