Species identification is fundamental when recording biodiversity data. There are many species identification guides, websites and apps available. We have listed some for each country. Butterflies are relatively easy to identify to species level. Therefore, the focus is on this species group. For other groups of flower visitors, more specialist information is required to identify them to species. Therefore, the other flower visitors are split into these categories: honeybees, bumblebees, solitary bees, hoverflies, flies, beetles, bugs, moths, and wasps. These groups can only be recorded at group level in this app.
 
    
        
            Europe
            
                - 
                    Butterflies of Central Europe & Britain by Peter Gergely 
This Field Guide contains information to identify 269 butterfly species occurring in Britain, Western and Central Europe. With detailed pictures of identification characteristics and precise pointing marks, this Guide will help you to identify difficult and similar species. 
Author Peter Gergely. A hardcopy can be bought at the Dutch Butterfly Conservation. 
                    link
                 
                - 
                    Identify the differences between wild bees, bumblebees, wasps and hovervlies
                    link
                
  
            
         
     
 
    
        
            Netherlands
            
                - 
                    Vlinder herkenningskaart
                    link
                
  
                - 
                    Wilde bijen determinatie
                    link
                
 
                - 
                    Hommels
                    link
                
 
            
         
     
 
    
        
            United Kingdom
            
                - 
                    Butterfly identification guide by Butterfly Conservation
                    link
                
 
                - 
                    Common UK Butterfly Identification and Facts - Woodland Trust
                    link
                
 
                - 
                    Bumblebee identification guide by Bumblebee Conservation Trust
                    link
                
 
                - 
                    What's that bumblebee app by Bumblebee Conservation Trust
                    iOS
                    Android
                
 
                - 
                    UK Pollinator Monitoring Scheme (POMS)
                    link