Mediterranean Flour Moth
|Mediterranean Flour Moth|
Not evaluated (IUCN 3.1)
Numerous: Indian Flour Moth, Mill Moth, Flour Moth, Pantry Moth
The Mediterranean Flour Moth, Indian Flour Moth or Mill Moth (Ephestia kuehniella) is a moth of the family Pyralidae. It is a common pest of dry plant produce – especially cereals – and found around the world.
Another common name, less unambiguous, is "flour moth", which (like "pantry moth", occasionally used for the present species) may also refer to the related Indianmeal Moth (Plodia interpunctella). In addition, the species has been discussed under a number of now-invalid junior synonyms, its specific name has been frequently misspelled, and it was once placed in a distinct genus Anagasta (now considered a subgenus of Ephestia):
- Anagasta huchinella (lapsus)
- Anagasta kuchinella (lapsus)
- Anagasta kühmiella (lapsus)
- Anagasta kuehniela (lapsus)
- Anagasta kuehniella (Zeller, 1879)
- Anagasta kurhirela (lapsus)
- Anagasta lunella (lapsus)
- Ephestia fuscofasciella Ragonot, 1887
- Ephestia gitonella Druce, 1896
- Homoeosoma alba Roesler, 
- Homoeosoma ischnomorpha Meyrick, 1931
- Homoeosoma nigra Roesler, 
Description and ecology
The adult moth is pale gray and up to 12 mm long, with dark bands. The hindwings are grayish-white. The wingspan is between 16 mm and 20 mm. The larva (caterpillar) is off-white with a darker head and small black spots on its body. The larva emerge from tube-like structures about 40 days after they hatch. The larva is about 12 mm long when mature. The larva then find a place to spin a cocoon. When the larva spin cocoons, they turn to a reddish-brown color. It takes about 8–12 days for the larva to become a moth and it takes 5–7 weeks for the egg to become an adult. The female moth lays 120–680 small white eggs. These eggs commonly attach to food and they hatch within 3–8 days.
The caterpillars are often found feeding on flour, cereals, baked goods and other dry grain products in food storage areas. Less often, dried fruits or mushrooms and even peat or rotting wood may be eaten. The species may reach extreme population densities in suitable locations (such as gristmills) if left uncontrolled, and the silken webs produced by the caterpillars may even interfere with normal operations of machinery such as flour sieves. The adult moths do not feed.
It is essential to ensure that food storage areas are kept clean and tidy and that no residues are left over. In addition it is imperative that food – especially grain, sugar and flour – is kept in plastic or metal storage containers with tight fitting lids. This will stop flour moths and other pests from getting at their contents. Note however that tiny gaps, even at the rim of Tupperware lids, will allow oviposition.
- Steve Jacobs and Dennis Calvin (October 1988). "Mediterranean Flour Moth". Penn State College of Agricultural Sciences. Retrieved 2013-09-07.
- Jay B. Karren and Alan H. Roe (May 2000). "Flour Moths, Fact Sheet No. 1". Retrieved 2013-09-07.
- Grabe (1942)
- Vera Krischik and Wendell Burkholder. "Mediterranean Flour Moth (Mill Moth)". Retrieved 2013-09-07.
- Mary Schmich (2013-03-022). "Attack of the pantry moths". Chicago Tribune. Retrieved 2013-09-07.
- Grabe, Albert (1942): Eigenartige Geschmacksrichtungen bei Kleinschmetterlingsraupen ["Strange tastes among micromoth caterpillars"]. Zeitschrift des Wiener Entomologen-Vereins 27: 105-109 [in German]. PDF fulltext
- Savela, Markku (2009): Markku Savela's Lepidoptera and some other life forms – Ephestia elutella. Version of 2009-APR-25. Retrieved 2010-APR-10.
Media related to Ephestia kuehniella at Wikimedia Commons