Noon Fly vs Monarch Butterfly

Side-by-side species comparison

Attribute Noon Fly Monarch Butterfly
Scientific Name Mesembrina meridiana Danaus plexippus
Order Diptera Lepidoptera
Family Muscidae Nymphalidae
Size 10-13mm 89-102 mm wingspan
Habitat Farmland Farmland
Diet Dung Feeders Predators
Regions Europe North America, Central America
Conservation Least Concern Endangered

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.

Monarch Butterfly

Famous for its incredible multi-generational migration spanning up to 4,800 km between Canada and Mexico. Orange wings with black veins signal toxicity to predators.

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Did You Know?

Monarch butterflies migrate up to 4,800 km from Canada to Mexico — and the generation that returns north has never been there before, yet navigates perfectly.