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THE EYE IN EVOLUTION 

 TYPICAL INSECTS : I 



(Draivn not to scale but approxitnately to a standard size.) 



THYSANURA 



APTERYGOTA 



PROTURA 



COLLEMBOLA 



Silver-fish 



Acerentonion 

 EXOPTERYGOTA 



ORTHOPTERA 



Springtail 



DERMAPTERA 



Cockroach 



Grasshopper 



Stick-insect 



Earwig 



PLECOPTERA 



ISOPTERA 



PSOCOPTERA 



ANOPLURA 



Stone-fly 



Termite 



Book-louse 



Pediculus 



EPHEMEROPTERA 



THYSANOPTERA 



HEMIPTERA 



Thrip 



Bed-bug 



