Noon Fly vs Stalk-Eyed Fly

Side-by-side species comparison

Attribute Noon Fly Stalk-Eyed Fly
Scientific Name Mesembrina meridiana Teleopsis dalmanni
Order Diptera Diptera
Family Muscidae Diopsidae
Size 10-13mm 6-10 mm body (eye span up to 25 mm)
Habitat Farmland Rivers & Streams
Diet Dung Feeders Fungus Feeders
Regions Europe Asia
Conservation Least Concern Least Concern

Noon Fly

A large stocky black fly with bright orange wing bases. It basks in sunshine on walls and fences at midday.

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Did You Know?

Named for its habit of basking in the midday sun, often sitting motionless on warm surfaces around noon.

Stalk-Eyed Fly

Males have eyes on the tips of long rigid stalks that can span wider than their body length. Females prefer males with wider eye spans, driving extreme sexual selection.

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Did You Know?

Males compete by facing each other and comparing eye span — the wider-eyed male wins. Females prefer wide-eyed males because eye span indicates good genes.