Nemapogon variatella
(Clemens, 1859)
Pale Corn Clothes Moth
Nemapogon variatella is a small tineid with a wingspan of approximately 12 mm. Native to Europe, it has been introduced to North America where established have been documented. The is associated with fungal and detrital food sources, with larvae recorded feeding on bracket fungi including Coriolus versicolor, Laetiporus sulphureus, and Polyporus squamosus.
Pronunciation
How to pronounce Nemapogon variatella: /nɛˈmæpəɡɒn ˌveəriˈætɛlə/
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Identification
The small wingspan of approximately 12 mm distinguishes Nemapogon variatella from larger tineid moths. Definitive identification requires examination of genitalia or molecular analysis, as external overlaps with . The may be separated from Nemapogon cloacella by subtle differences in wing pattern, though these require expert verification.
Images
Habitat
Associated with woodland environments where bracket fungi occur on dead or decaying wood. Larval includes fruiting bodies of polypore fungi and dead wood substrates.
Distribution
Native to Europe, with records from almost all European countries. Introduced to North America, with documented occurrences in Pennsylvania, USA.
Diet
Larvae feed on bracket fungi (Polyporaceae), specifically recorded from Coriolus versicolor, Laetiporus sulphureus, and Polyporus squamosus. Association with dried grain or stored produce is possible but not confirmed.
Host Associations
- Coriolus versicolor - larval foodbracket fungus
- Laetiporus sulphureus - larval foodbracket fungus
- Polyporus squamosus - larval foodbracket fungus
Ecological Role
Decomposer; larvae contribute to nutrient cycling by consuming fungal fruiting bodies and decaying wood.
Human Relevance
Potential minor pest of stored products, though economic impact is not documented. The congeneric Nemapogon gerasimovi (previously misidentified in border interception reports) is of agricultural concern for feeding on seeds and grains.
Similar Taxa
- Nemapogon cloacellaSimilar size and ; historically confused due to preoccupied synonym Tinea infimella
- Nemapogon gerasimovi with similar ; distinguished by distribution (native to Asia) and association with stored soybeans and grains
Misconceptions
The has been confused with Nemapogon cloacella due to nomenclatural issues involving the name Tinea infimella. Border interception reports from Baltimore CBP in 2014 originally identified a Nemapogon species from China as N. gersimovi (later N. gerasimovi), not N. variatella, though these reports are sometimes conflated in online sources.