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. <)T.—Jnfyjc solifugus. 

 (After Lubbock.) 



Fig. 90. — Lepisma sac- 

 charina. (After Lub- 

 bock.) 



Fig. 92. — Ventral aspect 

 of Machilis, showing- 

 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 



