Editing Bagworm moth (section)

==Description==
The [[caterpillar]] [[larva]]e of Psychidae construct cases out of silk and environmental materials such as [[sand]], [[soil]], [[lichen]], or [[plant]] materials. These cases are attached to rocks, trees or fences while resting or during their [[pupa]] stage, but are otherwise mobile. The larvae of some species eat [[lichen]], while others prefer green leaves. In many [[species]], the adult females lack wings and are therefore difficult to identify accurately. Case-bearer cases are usually much smaller, flimsier, and consist mainly of silk, while bagworm "bags" resemble [[caddisfly]] cases in their outward appearance &ndash; a mass of (mainly) plant [[detritus]] spun together with silk on the inside.

Bagworm cases range in size from less than 1&nbsp;cm to 15&nbsp;cm among some [[tropical]] species. Each species makes a case particular to its species, making the case more useful to identify the species than the creature itself. Cases among the more primitive species are flat. More specialized species exhibit a greater variety of case size, shape, and composition, usually narrowing on both ends. The attachment substance used to affix the bag to host plant, or structure, can be very strong, sometimes requiring a great deal of force to remove.{{cn|date=October 2021}} Body markings are rare. Adult females of many bagworm species are [[larviform female|larviform]], with only [[vestigial]] wings, legs, and mouthparts. In some species, [[parthenogenesis]] is known. The adult males of most species are strong fliers with well-developed wings and feathery antennae but survive only long enough to reproduce due to underdeveloped mouthparts that prevent them from feeding. Most male bagworm wings have few of the scales characteristic of most moths, instead having a thin covering of hairs.

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File:Pachythelia villosella.case.jpg|"Bag" of ''[[Pachythelia villosella]]'' ([[Oiketicinae]])
File:Grasninella m.JPG|Adult specimen of ''[[Phalacropterix graslinella]]'' (Oiketicinae)
File:Bagworm Moth larva Negev.JPG|Bagworm larva in the [[Negev]] (April 2014). Case is made mostly of feathery stork's bill seeds (''[[Erodium cicutarium]]'').
File:Family Psychidae444.jpg|Bagworm (possibly ''[[Hyalarcta huebneri]]'') extending its forequarters from its case in the act of [[Terrestrial locomotion|locomotion]].
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