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This species is less
commonly encountered than the webbing clothes moth. Its common name
comes from the silken tube/case (looks like a sleeping bag!) spun
by the larva and which is carried about wherever the larva goes.
The adult moth measures about 10-14mm
from wing tip to wing tip. Its body is buff to golden with a brownish
tinge, except for 3 spots on each front wing. A mature larva measures
approx 10mm, has a whitish body except for a reddish brown head.
Signs of an infestation are silken
cases (cigar shaped) open ended approx 1.5-10mm long, with pieces
of infested material (i.e. carpet fibres) incorporated into the
case. The larva surface feeds/grazes in irregular furrows or holes
if infestation is severe.
Casemaking clothes moth larvae attack
primarily materials of animal origin and secondarily those of plant
origin. Animal origin include feathers, wools, rugs, furs, mummified
carcasses, taxidermy mounts etc. Plant origin include tobacco, various
herbs and seasonings, hemp, linseed etc. It is particularly a pest
of feathers/down and hair/fur.
The larva moves by extending its
head and thoracic legs out of its case and then drags the case along.
The larva can feed from either end of the case. When it is ready
to pupate the larva seeks a protected place, such as a crack or
crevice which is usually off the infested material.
 MOVIE
- Follow this link to see the larva in action - movie created with
Microsoft(R) Windows(R) Movie Maker. To watch the movie, click on
the link or save it to your hard disk. For the best viewing experience,
use Microsoft(R) Windows Media(TM) Player. Click this link to get
the latest version http://windowsmedia.com/moviemaker/wmpdetect.asp?LCID=0409.
Adults do not feed. They shun light,
not being attracted to lights as are most moth species.
Control
The key to control is a proper identification,
a thorough inspection, good levels of hygiene (i.e. vacuum thoroughly
and move furniture to vacuum underneath/around) and if necessary
an insecticidal treatment which should be carried out by a professional
pest control company, preferrably being a member of the BPCA. If
pets are or have been present check where pet hair may accumulate
such as around skirting boards, cracks in flooring etc.
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