146 TRANSFORMATIONS OF INSECTS. 
larvee, according to Mr. Stainton, who has made this group his 
especial study, vary excessively in the number of legs; sixteen 
is the usual number, but in several genera fourteen only are 
found; in the genus /fepticula they number eighteen, and on the 
other hand, some other larve are legless or apodal. The habits 
of the larve vary also; some feed in the open air, others in 
rolled up leaves, others are miners, some case bearers, and some 
feed upon clothes, or on the lining of sofas. (Stainton.) 
Many naturalists have observed that the species of Solenodia, 
one of the Zzuzctde, have a most exceptional power of repro- 
duction. The maiden females of the genus lay eggs which 
can be hatched so as to produce larve, and a naturalist may breed 
a species for years without seeing a male Solenobia. ‘This extra- 
ordinary fact is not without parallel amongst the Lepidoptera, as 
will be noticed at the end of this chapter, and it is common 
amongst the bees and Affzdes, or plant-lice. 
Many of the Z7zzezd@ do a great deal of mischief in houses, 
to clothes, carpets, household stuffs, and feathers; for the larve, 
which have soft integuments, have the instinct to clothe them- 
selves artistically, but at our expense. TZznea tapetzella is one 
of the most destructive species, for the little caterpillar constructs 
a protecting tube, which is almost cylindrical in shape, out of the 
fibres and small pieces of the stuff it delights to gnaw. As the 
caterpillar grows the. case becomes too small, so the insect 
enlarges its home by adding some threads to both of the ends, 
and a very harlequin appearance may be given to the tube if 
differently coloured stuffs are placed in the way of the little 
tube-maker from time to time. The caterpillar closes one end 
of the case, and hangs it up before becoming metamorphosed 
into a chrysalis; but the insect turns in the tube before the 
transformation, and keeps its head turned towards the open 
and unattached termination. The moth comes out, therefore, 
easily enough. 
Tinea pellionella makes a case with silk and small pieces of 
hair or fur all cut to the same size, and does a great deal of 
mischief to furriers’ stores; and TZzuea crinella attacks skins, 
feathers, and horse-hair, doing an infinitude of harm to furniture. 
There is a 7txea that lives in cereals when the grain is stored 
