Indianmeal moth

Indianmeal moth
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Lepidoptera
Family:	Pyralidae
Tribe:	Phycitini
Genus:	Plodia Guenée, 1845
Species:	P. interpunctella
Binomial name
Plodia interpunctella (Hübner, [1813])
Synonyms
Many, see text

The Indianmeal moth (Plodia interpunctella), also spelled Indian meal moth and Indian-meal moth, is a pyraloid moth of the family Pyralidae. Alternative common names are hanger-downers, weevil moth, pantry moth, flour moth or grain moth. The almond moth (Cadra cautella) and the raisin moth (Cadra figulilella) are commonly confused with the Indian-meal moth due to similar food sources and appearance. The species was named for feeding on Indian meal or cornmeal, and does not occur natively in India. It is also not to be confused with the Mediterranean flour moth (Ephestia kuehniella), another common pest of stored grains.

P. interpunctella larvae (caterpillars) are commonly known as waxworms. They are not the same species as the waxworms often bred as animal feed. Rather, they are a common grain-feeding pest found around the world, consuming cereals, fruits, and similar products. Substantial efforts have been taken in the United States to control the moth's damage to grain crops.^[1]

The larvae of this species have the ability to bite through plastic and cardboard so even sealed containers may be infested.^[2] Once found, the moths are difficult to eradicate. The last larval instar is also able to travel long distances before pupating; so a new infestation site may develop far from the last pupation site.^[3] In addition to food sources, this species can reproduce and pupate on clothing and any source of clothing must be inspected to prevent reinfestation.