410 MODERN CLASSIFICATION OF INSECTS. 
habits* ; but their larve are generally naked or slightly hairy ; many 
residing in portable cases formed of various materials, in which they 
undergo their transformations, whilst others feed upon vegetable sub-: 
stances ; some residing within the stalks of plants, and others upon 
their leaves ; a few being subcutaneous. 
In their perfect state, they are mostly of a larger size than the mi- 
nute gilt species, belonging to the preceding family ; and in their co- 
louring they rarely exhibit any of that brilliancy of gold and silver 
with which so many of the latter are ornamented ; their usual tints 
being, as Mr. Stephens observes, of a rather sombre hue, in which 
ochre, white, or buff colour, with longitudinal marks or streaks, in 
varied irregular characters, are conspicuous; the posterior wings 
being generally plainer. We know nothing of the exotic species of 
this and the preceding families, nor of their transformations. Our 
arrangements must therefore as yet be considered as unsettled. 
The typical species of this family compose the genus Tinea, whose 
history is so well sketched by Pliny in these words: “ Est item Tinea 
quedam pendula, vel tunicata, tunicam suam sensim attrahens, ut 
cochlez testam; qua spoliata statim expirat: si vero nimium excre- 
verit tunica, in chrysalidem abit, ex qua Phalena quadam exigua 
(fig. 118. 5. Tinea tapetzella) stato tempore erumpit” (Mouffet, 
p- 274.); and which have afforded the beautiful image of a “ moth 
fretting a garment,” so often alluded to in holy writ. Itis, of course, 
in the larva state that these insects are so destructive to woollen ma- 
terials of every description, feathers, furs, skins, and objects of natural 
history, upon which they feed; using the material also for the con- 
struction of their moveable cases ; in which, when full grown, they 
change to chrysalides, which protrude themselves out of the upper 
extremity of the case, head foremost ; the larva having had the instinct 
to turn in its case previous to pupation. These larve have six pec- 
toral, eight ventral, and two anal feet. There are fifteen British 
species of this genus, including some (T. granella, or the wolf, Philos. 
Transact. 1694, and Trans. Philadelph. Soe. vol. i. 1789) which com- 
mit great havoc in granaries and in malt-houses, feeding upon the 
grain, and fastening it together with silken threads. 
The species included in the genus Galleria Fadr. inhabit the nests 
* M. Duponchel has divided these insects into sixteen classes, according to the 
variations in the habits of their preparatory states. I regret that I can only refer to 
his interesting memoir (Annal. Soc. Ent. de France, 1838, p. 127.). 
