Entoma
Okiscarta uchidae, Okiscarta uchidae, plate

Froghoppers

Okiscarta uchidae

This spittlebug spends its early life sealed inside a mass of self made foam on a nettle stem, only leaving once it becomes an adult.

WhereLow mountain forests and shrubland
Size13 to 16 mm body length
WhenApril to November

This is a black, smooth bodied spittlebug with red markings across the wings that vary between individuals, sometimes forming broken bands and sometimes small separate patches. The head and pronotum are glossy black with little additional patterning.

Nymphs feed on the sap of nettle family shrubs and surround themselves in a mass of foam on the stem for protection while they develop. Adults leave the foam nest once mature and are found in low mountain forest and shrubland.

Traits

Habitat

Woodland

Colour

Black, Red

Active

Day

To people

Harmless to people; does not bite or sting.

Activity through the year

Often confused with

Cosmoscarta rubroscutellatanot in guide
Cosmoscarta rubroscutellata

Also boldly marked in black and red like this species, but named for a red scutellum plate behind the thorax rather than red bands crossing the wings.

Questions

Is Okiscarta uchidae dangerous to people?

Harmless to people; does not bite or sting.

When can you see Okiscarta uchidae?

Okiscarta uchidae can be seen from April to November, by day.

Plate retouched from a photo by ericyin322, CC0, iNaturalist Licence

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True bugs›Froghoppers›Okiscarta

Last updated 2026-09-27. Every entry is checked against published sources.