Macrochilo louisiana

Forbes, 1922

Louisiana Owlet, Louisiana Macrochilo, Louisiana Snout-moth

Macrochilo louisiana is a small litter in the Erebidae, first described by William Trowbridge Merrifield Forbes in 1922. It is widely distributed across North America, ranging from Quebec and Maine south to Florida, west to Texas, and north to Alberta. are active from June to September in northern and from February onward in southern populations. The has a wingspan of 20–27 mm.

Macrochilo louisiana SERC 05-26-15 (17934392270) by Smithsonian Environmental Research Center. Used under a CC BY 2.0 license.

Macrochilo louisiana SERC 08-11-16 (29065517556) by Smithsonian Environmental Research Center. Used under a CC BY 2.0 license.

Pronunciation

How to pronounce Macrochilo louisiana: /ˌmækroʊˈkaɪloʊ luˌiːziˈænə/

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

Identification

The can be distinguished from other Macrochilo species by geographic range and period, though specific diagnostic morphological features are not detailed in available sources. The combination of small size (wingspan 20–27 mm), broad North distribution, and seasonal activity pattern (June–September in north, February onward in south) may aid identification. examination is typically required for definitive species-level identification in this .

Images

Habitat

As a litter ( Herminiinae), the is associated with forest floor and leaf litter . Specific microhabitat preferences are not documented.

Distribution

North America: Quebec and Maine south to Florida, west to Texas, north to Alberta. Documented presence in Canadian provinces (Alberta, Manitoba, Saskatchewan) and United States (Vermont and throughout eastern and central regions).

Seasonality

are on from June to September in northern parts of the range, and from February in southern parts. The extended period in southern suggests possible multiple or continuous activity in warmer climates.

Life Cycle

with , larval, pupal, and stages. Specific details on larval plants, number of , or stage are not documented.

Ecological Role

of Herminiinae typically function as in forest floor , contributing to through leaf litter decomposition. Specific ecological role of M. louisiana has not been studied.

Human Relevance

No documented economic or medical significance. Not known to be a . The is occasionally encountered by naturalists and enthusiasts, with 935 observations recorded on iNaturalist.

Similar Taxa

Other Macrochilo speciesThe Macrochilo contains multiple similar-looking that require examination or geographic context for reliable identification. M. louisiana is distinguished by its specific distribution pattern and season.

More Details

Nomenclature

Originally described as Xylormissa louisiana Forbes, 1922; later transferred to Macrochilo. The preferred has shifted from 'Louisiana Macrochilo' or 'Louisiana Snout-' to 'Louisiana Owlet' in more recent usage (iNaturalist).