Acronicta fallax

(Herrich-Schäffer, 1854)

Green Marvel, Green Marvel Moth

Acronicta fallax, commonly known as the green marvel , is a noctuid moth found across most of North America. First described by Herrich-Schäffer in 1854, this has a wingspan of approximately 34 mm. are active year-round in warmer regions, with particularly extended periods in Florida from February through November. The species belongs to the dagger moth Acronicta, characterized by distinctive caterpillars often bearing prominent defensive setae.

Acronicta fallax by (c) Jake McCumber, some rights reserved (CC BY), uploaded by Jake McCumber. Used under a CC-BY license.

Acronicta fallax by (c) Andy Reago & Chrissy McClarren, some rights reserved (CC BY). Used under a CC-BY license.

Pronunciation

How to pronounce Acronicta fallax: /əˈkrɒnɪktə ˈfælæks/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

The green marvel can be distinguished from similar Acronicta by its green coloration and specific wing patterns, though detailed diagnostic features require examination of specimens. As with other dagger moths, the caterpillar stage may provide more distinctive characteristics for identification than the stage.

Images

Appearance

have a wingspan of about 34 mm. The exhibits green coloration as suggested by its , though specific pattern details are not well documented in available sources.

Habitat

Occurs in a broad range of across its extensive North American distribution, from southern Canada through the eastern and central United States to the Southwest and Florida. Specific microhabitat preferences are not well documented.

Distribution

Found across most of North America, ranging from Ontario, Quebec, New Brunswick, Nova Scotia, Newfoundland and Labrador, and Manitoba in Canada southward through the United States to Arizona in the Southwest and Florida in the Southeast.

Seasonality

are on wing from February to November in Florida, indicating a prolonged period in subtropical regions. Seasonal patterns in more northern portions of the range are less documented but likely more restricted to warmer months.

Behavior

are and attracted to light. The extended season in Florida suggests multiple or continuous breeding in favorable climates.

Similar Taxa

Acronicta americanaSimilar dagger ; American dagger moth caterpillars are distinctive with long black setae, but differ in coloration and pattern
Acronicta radcliffeiAnother North American dagger moth in the same with similar size and general appearance, distinguished by specific wing markings

More Details

Taxonomic History

Originally described as Moma fallax by Herrich-Schäffer in 1854, later transferred to Acronicta. The basionym Moma fallax is retained as a synonym.

Observation Data

The has over 2,000 observations on iNaturalist, indicating it is frequently encountered and well-represented in citizen science data.