Agonopterix eupatoriiella
(Chambers, 1878)
Agonopterix eupatoriiella is a small in the Depressariidae, first described from North America in 1878. It has a wingspan of approximately 24 mm and exhibits dark, dusted forewings with distinctive costal streaking. The is associated with plants in the Asteraceae family, particularly Eupatorium species.
Pronunciation
How to pronounce Agonopterix eupatoriiella: /ˌæɡəˈnɒptərɪks ˌjuːpətɔːriˈɛlə/
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Identification
The combination of small size (24 mm wingspan), dark fuscous-grey forewings with blackish costal streaks, and pale greyish hindwings with purplish lustre distinguishes this . The specific pattern of streaking along the forewing is a key feature. Similar Agonopterix species may lack the distinct costal streaking or show different wing coloration.
Appearance
Wingspan approximately 24 mm. Forewings dark to fuscous grey, dusted with blackish forming small streaks along the . Hindwings pale greyish with a faint purplish lustre.
Habitat
Associated with plant including open woodlands, meadows, and riparian areas where Eupatorium , Verbesina alternifolia, and Carya ovata occur.
Distribution
North America: recorded from Illinois, Kentucky, Maryland, Michigan, Minnesota, Mississippi, Missouri, North Carolina, Ohio, Quebec, Tennessee, and Wisconsin.
Diet
Larvae feed on Eupatorium , Verbesina alternifolia (wingstem), and Carya ovata (shagbark hickory). feeding habits are not documented.
Host Associations
- Eupatorium - larval food plantmultiple
- Verbesina alternifolia - larval food plant
- Carya ovata - larval food plant
Ecological Role
Herbivore in larval stage; contributes to nutrient cycling through leaf feeding on plants.
Similar Taxa
- Other Agonopterix speciesSimilar size and general ; distinguished by forewing pattern details, particularly the presence and arrangement of costal streaks
More Details
Original description
First described by Vactor Tousey Chambers in 1878, originally placed in Depressaria.
Taxonomic history
Basionym Depressaria eupatoriiella; transferred to Agonopterix, reflecting revised understanding of Depressariidae generic limits.