The following guidance for recording the Agromyzidae in Britain is taken from the Agromyzidae Recording Scheme and Agromyzidae Newsletter in January 2018, by Barry Warrington

Grade 1: Easily identifiable by inexperienced recorders

Grade 2: Care should be taken due to possibilty of other causers

Grade 3: Difficult to determine; all aspects of the mine should be examined. Rearing advised

Grade 4: As above - can be determined by examination of larva or puparium

Grade 5: Rearing of adult material essential

Grade 2,5: Readily identifiable on some hosts but not others

Grade *: The lifestyle isn't known

 

 

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