Casemaking Clothes Moth (Tinea pellionella)
The casemaking or case-bearing clothes moth is a member of the fungus moth family. It has a cosmopolitan distribution and is often referred to as a bagworm because of the bags that the larva carry themselves around in. It is a common pest to upholstery, woolen fabric, fur, and carpet, as evident from its name.
The larvae are creamy-white, 0.5 inches (1.27 cm) long. They enclose themselves in an open-ended silk case to move about. Their food sources consist of animal-derived clothing materials like wool, leather, silk, fur, and feathers.
The pupa formation varies with temperature, taking place quicker at higher temperatures. The cocoons look like tiny rice grains.
exual Dimorphism: Present but not prominent
Color and Appearance
The color ranges from silvery gray to a shiny light brown. There are dark grayish hairs on its head. Forewing: They are grizzled brown with a single large spot and fewer black spots, smaller in size, and paler in color.
Hindwing: The wings are plain and pale brown-gray, surrounded by hairy fringes.
Average wingspan: 9-16 mm
Season: June- October
Females lay the eggs in small clusters, which hatch in 4-10 days. The number depends on how high the temperature is.
|Other Names||Case-bearing clothes moth|
|Habitat||Dark, moist areas in households|
|Lifespan of Adults||2 months|
|Host Plants||The larvae do not feed on plants|
|Adult Diet||Do not feed|
Did You Know
- As they prefer higher temperatures, well-heated buildings are more likely to get infested by them.
- Though similar in size and appearance, mainly infesting fabrics, the casemaking and webbing clothes moth vary in color. The former has a brownish appearance with dark wings, while the latter has a golden-tan body and wings.