8 4 
THE STUDY OF INSECTS . 
and often does damage to starched clothing, book-bindings, 
and sometimes loosens wall-paper by eating out the paste. 
Under a microscope the Fish-moth shows beautiful markings 
Fig. 90 . — Lepisma sac- 
charina. (After Lub¬ 
bock.) 
Fig. q\.—Japvx solifugus. 
(After Lubbock.) 
appendages. 
on the shining scales; and at the caudal end of the body are 
three long bristle-like appendages (Fig. 90), which suggest 
the common name Bristle-tail applied to members of this 
suborder. Figure 91 represents Japyx (Ja'pyx), a Bristle- 
tail in which the caudal appendages are in the form of horny 
forceps; and Figure 92 represents the lower side of Machilis 
(Mach'i-lis), another Bristle-tail, found under stones and 
loose bark; this genus has rudimentary abdominal legs as 
shown in the figure. 
Suborder Collembola (Col-lem'bo-la). 
The Spring-tails. 
In the Spring in the Northern States, on bright sunny 
days when it is thawing, one often sees upon the snow thou¬ 
sands of tiny dark specks. In other places pools of still 
