It is a very common species in western Europe (parts of France and Central Europe.The range In the North extends to Scandinavia and Finland. The species is largely missing in southern Europe. There are isolated occurrences in southern Bulgaria and the Pyrenees). It extends East across the Palearctic from the Urals to the Russian Far East (Sakhalin) to Korea, northeastern China and Japan.
Scopula floslactata has a wingspan of about three centimeters.Colour and pattern are variable. The wings are creamy-white to yellowish-white. Across the fore and hind wings, there are usually three jagged crosslines. Occasionally,there is a wavy line in the marginal field. The discal flecks are small and are often missing on the forewings, or very much blurred. In contrast, the discal flecks on the hindwings are almost always present. The fringes are sometimes also slightly darker than the ground colour.The males have small, feathered antennae. Similar Species: Distinguished from Scopula immutata by its less rounded forewings and less developed or absent black discal spot.
It has one generation per year, with adults taking flight from late May through early July.
The larvae feed on Woodruff (Galium odoratum), dandelion (Taraxacum officinale), bilberry (Vaccinium myrtillus), Lonicera xylosteum, Alnus glutinosa, Galium verum, Rumex acetosa, and Vicia sepium. They also eat dry leaves of poplars (Populus) and willow (Salix).
- Scopula floslactata floslactata (Europe to China)
- Scopula floslactata claudata Prout, 1913 (Japan, Korea, Russia: Primorye and South Kuriles)
- Sihvonen, P., 2005: Phylogeny and classification of the Scopulini moths (Lepidoptera: Geometridae, Sterrhinae). Zoological Journal of the Linnean Society 143: 473–530.
- "Scopula (Calothysanis) floslactata (Haworth, 1809)". 2.6.2. Fauna Europaea. 29 August 2013. Retrieved 18 April 2017.
- P. Sihvonen (2006). "The Sterrhinae moth fauna of Fenglin Nature Reserve, North-East China (Insecta, Lepidoptera, Geometridae)". Spixiana. BioStor. 29: 247–257.
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