Acronicta modica
Walker, 1856
Hesitant Dagger, Medium Dagger Moth
Acronicta modica is a noctuid native to eastern and central North America. The has undergone taxonomic revision: the name A. modica was historically applied to what is now A. immodica, while the current A. modica corresponds to the former A. haesitata. are attracted to light and have a wingspan of approximately 35 mm. The larvae feed on oak species.



Pronunciation
How to pronounce Acronicta modica: //æˈkroʊnɪktə ˈmoʊdɪkə//
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Identification
Acronicta modica can be distinguished from similar dagger moths in the by its specific wing pattern and markings, though detailed diagnostic features are not well documented in available sources. The is smaller than some such as the American Dagger Moth (Acronicta americana). Accurate identification may require examination of genitalia or reference to regional faunal treatments.
Images
Habitat
Deciduous forests and woodlands, particularly areas with oak trees present.
Distribution
Eastern North America from Nova Scotia south to Florida, west to Oklahoma and Texas. Also recorded from Ontario and Quebec south to Arizona, with additional records from Pennsylvania, Maryland, Iowa, and Wisconsin.
Diet
Larvae feed on oak (Quercus). feeding habits are not documented.
Host Associations
- Quercus - larval food plantoak
Behavior
are and attracted to artificial light sources.
Ecological Role
Larval herbivore on oak trees; contributes to nutrient cycling in deciduous forest .
Similar Taxa
- Acronicta immodicaFormerly considered or confused under the name A. modica; now recognized as a separate (the medium dagger under older ).
- Acronicta americanaLarger with similar (American dagger moth); larvae also feed on hardwood trees but species is more widespread and larger-bodied.
Misconceptions
The "Hesitant Dagger" was historically associated with A. haesitata, which is now a synonym of A. modica. Conversely, the name "Medium Dagger " was formerly applied to this but now refers to A. immodica. This nomenclatural confusion persists in older literature and some databases.
Sources and further reading
- BugGuide
- Wikipedia
- GBIF taxonomy match
- iNaturalist taxon
- NCBI Taxonomy
- Catalogue of Life
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