The Moths and Butterflies 
363 
lepidopterous larva is a well-contrived animal for its especial kind of life, 
which is as different as may be, almost, from that which it will lead after 
it has completed its metamorphosis. Always when one reads or hears of 
injurious moths or butterflies it should be kept clearly in mind that the 
injuries, to crops or fruit or woolen clothing or what not, are caused by the 
moth or butterfly in its larval 
stage and never by the flut¬ 
tering nectar-sipping adult. 
The sole compensation, 
other than the rather imma¬ 
terial though perhaps not 
less real one afforded us 
through our aesthetic ap¬ 
preciation of the beauty 
and attractive, apparently 
care-free, flitting about of 
ant jnjrfij' [{ 
Fig. 515. 
ant 
Fig. 515.—Front of head of larva of tussock-moth, Notolophus leucostigma, ant., antenna; 
md., mandible; mx., maxilla; mx.p., maxillary palpus; li., labium. (Much enlarged.) 
Fig. 516.—Front of head of old larva of tussock-moth, Notolophus leucostigma, with 
head-wall dissected away on right-hand side to show forming adult mouth-parts 
underneath, l.ant., larval antenna; ant., adult antenna; l.md , larval mandible; 
l.mx., larval maxilla; i.mx., adult maxilla; lb., larval labrum; l.li., larval labium. 
(Much enlarged.) 
Fig. 517.—Developing adult head dissected out from head of larva of tussock-moth, 
Notolophus leucostigma. ant., antenna; mx., maxilla; li.p., labial palpus. (Much 
enlarged.) 
Fig. 518.—Head of tussock-moth, Notolophus leucostigma; showing adult antennas and 
mouth-parts, mx., maxilla; li.p., labial palpus. Note that the two maxillae are 
not locked together to form a sucking-proboscis, the mouth-parts of this moth being 
rudimentary and not capable of taking food. (Much enlarged.) 
the butterfly, which the Lepidoptera make for their often disastrous toll on 
our green things, is the prodigal gift of silk made by the moth species known 
as the mulberry or Chinese silkworm. Thoroughly domesticated (the wild 
silkworm species is now not even known), this industrious spinner produces 
each year over one hundred million of dollars’ worth of fine silken thread 
