Dichrorampha acuminatana
(Lienig & Zeller, 1846)
Sharp-winged Drill
Dichrorampha acuminatana is a small with a wingspan of 10–15 mm, found across Europe and the Near East. The exhibits distinctive patterns with dark fuscous ground color, purplish tints, and ochreous . are active from May to September, with feeding on Leucanthemum vulgare (oxeye daisy) and Tanacetum vulgare (tansy). The species has been well-documented in Belgium and the Netherlands, with over 2,000 iNaturalist observations.



Pronunciation
How to pronounce Dichrorampha acuminatana: /dɪkroʊˈræmfə əˌkjuːmɪˈnɑːtənə/
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Identification
Distinguished from related Dichrorampha by the straighter of the . The combination of dark fuscous purplish-tinged ground color with ochreous , leaden-metallic streaks, and the characteristic paler triangular blotch is diagnostic. The three black dots on the , though sometimes obsolete, aid identification. The sharply marked and straight termen with minimal sinuation separate it from .
Images
Appearance
Small with wingspan 10–15 mm. with straighter than related ; fold reaches 1/3. Ground color dark fuscous with purplish tinge, obscurely with ochreous. with obscure leaden-metallic streaks. area paler-streaked. Prominent paler broad triangular straight-edged blotch. Three black dots on towards middle, sometimes nearly obsolete. Termen straight with very slight sinuation; sharply marked. light fuscous, darker in females. whitish with light ; plate of 2 faintly brownish.
Distribution
Europe and the Near East. Well-documented in Belgium (including Brussels-Capital, Flemish, and Walloon regions), the Netherlands, and other parts of continental Europe.
Seasonality
from May to September. season data primarily from Belgium and the Netherlands; timing may vary in other parts of the range.
Diet
feed on Leucanthemum vulgare (oxeye daisy) and Tanacetum vulgare (tansy).
Host Associations
- Leucanthemum vulgare - larval oxeye daisy
- Tanacetum vulgare - larval tansy
Similar Taxa
- Dichrorampha alpestranaSimilar pattern but D. acuminatana has straighter and distinct triangular blotch
- Dichrorampha montananaHistorically confused ; D. acuminatana distinguished by and pattern details