二分法/子囊菌门

                                     insect larve dichotomous key
                                                     
                                          does it have wings?
                                      
                                   yes                               no
                 
                           are they carnivores?                does it have hairs?
                        
                    yes                      no                  yes                           no
                   
           do they have claws?          stick insect      do they have stingers?         do they have four wings?     
               
      yes                   no                             yes             no               yes                     no
           
  praying mantis            wasp                           bee            cicada        butter fly          christmas beetle