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Scientific classification e
Kingdom: Animalia
Clade: Euarthropoda
Class: Insecta
Order: Hemiptera
Superfamily: Fulgoroidea
Family: Flatidae
Flatid nymph from Assam, India
Flatid adult from St. Louis, Missouri

Flatidae are a family of fulgoroid planthoppers. They are cosmopolitan in distribution and are distinguished from others in the superfamily by a combination of characters. Adults of some species have brightly coloured wings and are easily identified but the identification of species often requires dissection and comparison with identification keys.[1]

In the subfamily Flatinae, the body of adults is flattened laterally and the tegmina are tent-like. In the Flatoidinae, the body is not laterally compressed and the tegmina are not as tent-like and sometimes held horizontally. The wing venation is distinctive in that the veins in the anal region are nodose, and the costal area has numerous cross veins.[2] The antennae are small and the first segment is collar-like and small. The second segment is longer and ends in a bulge and a flagellum arises from it. They have two ocelli. Nymphs have a tail of waxy filaments.


Genera within the family Flatidae include:[3]

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