138 



Flashlights on Natike 



Some insects liave wings, and some have none ; 

 but among insects with none, we may distinguish 

 two classes : those whose progenitors could fly, 

 hut who have themselves degenerated so as to 

 become wingless ; and those who never had wings 

 at all, but represent the primitive non-tlying ar.- 



cestor. Several 

 of these earlv 

 wingless tvpes 

 still jK'rsist to 

 the present day ; 

 an.l thev very 

 closely resemble 

 the young of 

 the earwigs. 

 They have a 

 head with a 

 couple of wav- 

 ing antenme ; 

 they have a body 

 of three seg- 

 ments, each of 

 which bears a 

 pair of legs, but no wings ; they have a long, 

 jointed abdomen ; and at its end they have two 

 appendages, which, though not specialised into 

 pincers, distinctly suggest the forceps v)f the earwig, 

 indeed, it the baby earwigs alwavs remained in 

 tiieir lirst laival stage, we might easily mistake 

 them for some of these primitive wingless crea- 

 tures. Xo. 1 () is a rough sketch of such an early 

 type of non-tlying insect, by name Campodca, 



NO. 13.— Tin: I'SK OK iiiK i-inci:ks. 



