Compsoptera opacaria is a moth of the family Geometridae. It is found in south-western Europe, including Spain, Portugal, France[2] and Italy.
The wingspan is 34–45 mm. Adults are on wing from August to October in one generation per year.
The larvae feed on the leaves of various plants, including Genista, Thymus, Juniperus and Calluna vulgaris.
Compsoptera opacaria is a geometrid moth found in southwestern Europe (Spain, Portugal, France, Italy). Adults have a 34–45 mm wingspan, appearing from August to October. Larvae feed on plants like Genista, Thymus, and Calluna vulgaris. The species hibernates as eggs, with larvae active until June. 
Key Facts about Compsoptera opacaria
Family: Geometridae (inchworm moths).
Distribution: Primarily southwestern Europe, including Spain, Portugal, France, and Italy.
Habitat & Status: Inhabits well-conserved environments, often serving as an indicator of a healthy ecosystem, such as in the Valencian Community.
Flight Period: One generation per year, with adults active from August to October.
Life Cycle: Eggs hibernate. Larvae are found from early spring until June.
Larval Food Plants: Larvae feed on various shrubs, including broom (Genista), thyme (Thymus), juniper (Juniperus), and heather (Calluna vulgaris).
Wingspan: 34–45 mm.
Synonyms: Historically known as *Geometra opacaria* Hübner, 1819, and sometimes referred to by synonyms like C. hubneri or C. rubra.
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