Animal Species:Hatchet wasps

The hatchet or flag wasps are a small family of wasps with around 40 species.

Hatchet Wasp

Jiri Lochman/Lochman Transparencies © Jiri Lochman/Lochman Transparencies

Standard Common Name

Hatchet wasps

Alternative Name/s

Flag wasps

Number of species

40

Identification

Hatchet wasps have a long thin waist and a flat abdomen that moves up and down as they walk, resembling a flag or hatchet.

Size range

1.5 cm

Distribution

Hatchet wasps are found throughout Australia.

Habitat

Hatchet wasps live in urban areas, forests and woodlands, arid areas and grasslands.

Life cycle

Hatchet wasps parasitise the egg cases of cockroaches. The female wasp searches for recently laid cockroach eggs on which to lay her own. The wasp larvae hatch first and eat the cockroach eggs, eventually pupating to become fully developed adults.

One introduced species of hatchet wasp, Evania appendigaster, is common in Sydney and is extremely welcome because it parasitises the American Cockroach (Periplaneta americana), an introduced pest. Having eaten their fill, the larvae pupate into fully developed adults.

Classification

Family:
Evaniidae
Superfamily:
Evanioidea
Suborder:
Apocrita
Order:
Hymenoptera
Class:
Insecta
Subphylum:
Uniramia
Phylum:
Arthopoda
Kingdom:
Animalia

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Tags wasps, insects, arthropods, identification, wildlife of sydney,

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