Flatidae

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. Like all other planthoppers, they suck phloem sap of plants. Some species are known to communicate with vibrations through the plant stems.[1] Communication may be with mates, or with ants that tend the nymphs, protecting them and gathering honeydew secretions.[2] Adults of some species have brightly coloured forewings which are tougher and known as tegmina unlike the membranous hindwings which are used for flight. Although a few can be identified by their coloration, most species requires dissection and examination under a microscope with access to literature on already described species.[3]

Flatidae
adult bugs and nymphs (Flatida rosea) Ankarana Reserve, Madagascar
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hemiptera
Infraorder:	Fulgoromorpha
Superfamily:	Fulgoroidea
Family:	Flatidae
Subfamilies
Flatoidinae Flatinae

Flatid nymph from Assam, India

Flatid adult from St. Louis, Missouri

Ormenoides venusta nymph

There are two sub-families within the family. 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.[4] 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.