Tinagma dryadis
Staudinger, 1872
Tinagma dryadis is a small in the Douglasiidae, described by Staudinger in 1872. It has a wingspan of 7–8 mm and is active in July. The is notable for its specialized larval association with Dryas octopetala.
Pronunciation
How to pronounce Tinagma dryadis: //tɪˈnæɡmə ˈdraɪədɪs//
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Identification
Very small size (7–8 mm wingspan) distinguishes this from most other Lepidoptera. Within the Douglasiidae, identification to species level requires examination of genitalia or association with the larval plant Dryas octopetala.
Appearance
Small with a wingspan of 7–8 mm.
Habitat
Associated with alpine and subalpine environments where the larval plant Dryas octopetala occurs, including rocky slopes and tundra-like conditions.
Distribution
Recorded from Scandinavia, northern Russia, France, Switzerland, Austria, and Italy. GBIF records confirm presence in Norway and Sweden.
Seasonality
are on wing in July.
Diet
Larvae feed on Dryas octopetala. feeding habits are not documented.
Host Associations
- Dryas octopetala - larval plantSpecific association; no other host plants are documented for this .
Life Cycle
Larval stage feeds on Dryas octopetala. occurs in July. Details of and stage are not documented.
Ecological Role
As a herbivore on Dryas octopetala, the participates in the limited of alpine . Its narrow specificity suggests potential role in of this plant species in montane .
Human Relevance
No direct economic or cultural significance. The may serve as an indicator of intact alpine supporting Dryas octopetala.
Similar Taxa
- Other Tinagma speciesSimilar small size and characteristics; distinguished by plant association and genitalia .
- Other Douglasiidae members share small size and reduced wing venation; -level identification requires detailed examination.
More Details
Taxonomic note
The specific epithet 'dryadis' directly references the name of its plant Dryas, reflecting an unusually clear case of nomenclatural indication of ecological association.