Endrosis

Endrosis is distinguished from related genera in Oecophorinae by the combination of white shoulders on the forewings and a generally pale coloration. The genus is most reliably identified through examination of the single included species, E. sarcitrella, which has a wingspan of approximately 15–20 mm and characteristic white scaling at the base of the forewing. It resembles the brown house moth (Hofmannophila pseudospretella), but differs in its paler overall coloration and distinct white shoulder patches.

Associated with human dwellings and stored products; found in houses, barns, warehouses, and other buildings where dried organic materials accumulate. The genus thrives in warm, dry conditions with access to food sources such as stored grain, dried fruit, seeds, and animal detritus.

Cosmopolitan distribution due to human transport; established in Europe, North America, and other regions worldwide. Distribution records from GBIF confirm presence in Denmark (DK) and Norway (NO).

Adults may be encountered year-round in heated indoor environments. In temperate regions with unheated structures, activity is concentrated in warmer months.

Larvae feed on dried plant and animal matter including stored grain, cereals, dried fruit, seeds, wool, fur, feathers, and other keratinous materials. The genus is considered a pest of stored products.

Complete metamorphosis with egg, larva, pupa, and adult stages. Larvae are scavengers that develop within stored materials. Pupation occurs in a silken cocoon. Development is continuous in favorable conditions, with multiple generations per year possible.

Nocturnal. Adults are attracted to light. Larvae construct silken tunnels or webs within food substrates.

Decomposer of dried organic matter in anthropogenic environments. Serves as prey for various predators including spiders, parasitoid wasps, and birds in building interiors.

Significant pest of stored food products and natural history collections. Larval feeding damages grain, dried fruit, seeds, wool, fur, feathers, and museum specimens. Infestations require integrated pest management in food storage facilities and museums.

• HofmannophilaBoth genera contain house moths in Oecophorinae with similar habits and habitats; Hofmannophila pseudospretella (brown house moth) differs in darker brown coloration without white shoulder patches.

• stored product pest
• cosmopolitan
• monotypic genus
• house moth

• BugGuide
• GBIF taxonomy match
• iNaturalist taxon
• NCBI Taxonomy
• Catalogue of Life