Doorkeeper Ant vs Aphytis Wasp

Side-by-side species comparison

Attribute Doorkeeper Ant Aphytis Wasp
Scientific Name Colobopsis truncata Aphytis melinus
Order Hymenoptera Hymenoptera
Family Formicidae Aphelinidae
Size 3-6 mm 0.8-1.2 mm
Habitat Woodlands Orchards
Diet Gall Makers Parasitoids
Regions Southern and Central Europe Worldwide citrus-growing regions
Conservation Least Concern Not Evaluated

Doorkeeper Ant

A European carpenter ant in which soldiers have uniquely flattened, plug-shaped heads used to block nest entrances in plant stems. Workers are bicolored yellow and dark brown. They nest in hollow twigs and galls of various trees.

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Did You Know?

Soldier ants literally use their flattened heads as living doors, opening the nest entrance only when nestmates present the correct chemical password.

Aphytis Wasp

A tiny golden-yellow parasitoid wasp that is the primary biocontrol agent of California red scale on citrus. It lays eggs beneath the scale cover where its larva feeds externally on the host.

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Did You Know?

California produces over one billion of these wasps per year for release in citrus orchards.