18 



LABORATORY DIRECTIONS 



4. (5) More than four pairs of legs CLASS MYRIAPODA 



5. (4) With two, three, or four pairs of legs 6 



6. (25) With one or two pairs of wings used in flight or at 

 least capable of free movement. Usually three pairs of legs. 



CLASS INSECTA 7 



7. (10) Two pairs of wings, unlike in structure 8 



Tig. I 

 Giant water bug 



Fig. 3 



Water boatman 



Fig. 4 

 Water at rider 



Fig, 5 

 Water scorpion 



8. (9) Front wings leathery at base and membranous at 

 tip, often overlapping. Mouth parts formed for sucking (see 



figS. I tO 5) ORDER HEMIPTERA 



,ntenna v 



'Fig. 6 Fig, 7 Fig. 8 Fig. 9 Fig. 10 



Larva of a water Water ecaveng- Predacoous Larva of pro- HVhirltgig 

 scavenger beetle er beetle water beetle daceous beetle beetle 



9. (8) Front wings of same texture throughout, horny or 

 leathery (elytra) always meeting in a straight line down the 

 middle of the back (see fig. 7) ORDER COLEOPTERA 



