Apple Maggot Fly vs Deer Ked

Side-by-side species comparison

Attribute Apple Maggot Fly Deer Ked
Scientific Name Rhagoletis pomonella Lipoptena cervi
Order Diptera Diptera
Family Tephritidae Hippoboscidae
Size 4-6 mm 5-7 mm
Habitat Orchards Woodlands
Diet Fruit Feeders Blood Feeders
Regions Eastern North America Europe, Asia, introduced to North America
Conservation Least Concern Least Concern

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.

Deer Ked

A flattened, reddish-brown blood-sucking fly that sheds its wings upon finding a deer host. It clings tenaciously to the hair with strong claws and feeds on blood throughout its life.

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Did You Know?

After landing on a host, it breaks off its own wings permanently, spending the rest of its life as a wingless ectoparasite.