What Bug Is That? The guide to Australian insect families.

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The Miridae are the most speciose family of true bugs and may comprise up to 25,000 species worldwide.

Miridae exhibit a wide range of habits, with most species being phytophagous (plant-feeding). Some species are known to be predaceous, omnivorous or mycetophagous (fungus-feeding). Mirids are usually found on plants and are often restricted to a single plant species. There are some species that are found on the ground, either in association with leaf litter or leaf mould.

Ant mimicry is a common trait within the Miridae and has arisen independently within several subfamilies.


The Miridae are recognised by the following combination of characters: ocelli usually absent, femoral trichobothria present, cuneus present, forewing membrane with two or one closed cell(s), male genitalia asymmetrical and female genitalia with a laciniate ovipositor.


Seven subfamilies, 18 tribes, 91 genera and 186 described species have been described from Australia, though there are many more awaiting description. They are found in all states and territories.

  • Miridae (Heteroptera)

  • mirid bug