Blandford Fly vs Apple Maggot Fly

Side-by-side species comparison

Attribute Blandford Fly Apple Maggot Fly
Scientific Name Simulium posticatum Rhagoletis pomonella
Order Diptera Diptera
Family Simuliidae Tephritidae
Size 2-3 mm 4-6 mm
Habitat Rivers & Streams Orchards
Diet Blood Feeders Fruit Feeders
Regions Europe Eastern North America
Conservation Least Concern Least Concern

Blandford Fly

A notorious black fly that causes severe allergic reactions with its bite around the Blandford area of Dorset. Females need blood meals for egg development. Larvae develop in clean rivers.

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Did You Know?

Named after Blandford Forum in Dorset where outbreaks of painful bites affect thousands of people each summer.

Apple Maggot Fly

A fruit fly pest whose larvae tunnel through apple flesh causing brown trails. It is a textbook example of sympatric speciation by host plant shifting.

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Did You Know?

It shifted from native hawthorn to introduced apple trees in under 200 years, creating genetically distinct races.