Thera britannica (Turner, 1925) Species
Last modified: Oct. 6, 2023, 5:28 p.m.
A common and widespread species throughout Belgium.
Distribution on the basis of controlled males (saw teeth of the antenna members) or study of the genitalia in females.
Details
- Classification
- Family: Geometridae > Subfamily: Larentiinae > Tribus: Cidariini > Genus: Thera > Species: Thera britannica
- Vernacular names
- Schijn-sparspanner (NL), Spruce Carpet (EN), La Corythée anglaise (FR), Sägezahnfühler-Nadelholzspanner (DE)
- Synonyms
- Thera albonigrata Gornik, 1942, nec Höfer, 1920
- First mention in Belgium
- Sarlet L. 1980. Thera albonigrata Gornik, 1942 est-il belge? — Lambillionea 79: 53–55. On page 53.
- Status
-
Native
Distribution
Imago
Wingspan: 18–25 mm.
Museum specimens
Specimens in nature
Bionomics
Hibernates as young larva between needles of the food plant or among plant debris. Adults come to light.
No pictures yet!
Flight periods
The adults fly in two generations a year from mid-April till the end of June and from September till well in October.
Observed on
- Host plant (species):
- Picea abies and Pseudotsuga menziesii
- Host plant (genera):
- Picea
The larva lives on Picea spp. and Pseudotsuga menziesii.
No pictures yet!
