Seq # 601680020

Chlorissa viridata (Linnaeus, 1758) Species

Last modified: Jan. 21, 2023, 4:21 p.m.

A very rare and local species in Belgium, most records are from the southern provinces and from the Kempen.


Family: Geometridae > Subfamily: Geometrinae > Tribus: Hemitheini > Genus: Chlorissa > Species: Chlorissa viridata
Vernacular names
Smaragdgroene zomervlinder (NL), Small Grass Emerald (EN), L'Herbacée, la Phalène verte des Callunes (FR), Steppenheiden-Grünspanner (DE)
First mention in Belgium
De Sélys-Longchamps E. 1844. Énumération des insectes Lépidoptères de la Belgique. — Mémoires de la Société royale des Sciences de Liége 2: 1–35. On page 15 (as viridaria). view page




Wingspan: 19–27 mm.
Can be easily confused with Chlorissa cloraria but the ground colour is lighter green, the costa is concolorous with the ground colour or more whitish and the postdiscal white line on the hind wings is more straight.

Museum specimens

Specimens in nature


The adults are active from dusk on and come to light occasionally.

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Flight periods

The adults fly from late May till July.

Observed on

Host plant (species):
Salix repens
Host plant (genera):
Calluna and Betula

The larva is polyphagous on many species of lower plants and trees, it has been recorded a.o. on: Calluna vulgaris, Betula or Salix.

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Thermophilous, heathland, sparse grassland on low nutrient, sandy soils.

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