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Ease or difficulty of identification

 
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stuart
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Joined: 11 May 2005
Posts: 737
Location: Peterborough, UK

PostPosted: Mon May 23, 2005 9:38 pm    Post subject: Ease or difficulty of identification Reply with quote

This is a provisional attempt to categorise species by ease or difficulty of identification. Five categories have been defined, as follows:
  1. Can be identified at sight in the field by anyone with a bit of experience. Species with which the beginner rapidly becomes familiar. Usually identifiable from a photo.
  2. Can be identified in the field with care and experience. Needs a good view or the netting of a specimen to check, but the specimen can then be released. Beginners need to take specimens until they gain familiarity and experience. May be identifiable from a good photo.
  3. Specimen needs checking under magnification and good lighting. The Hoverfly Recording Scheme would accept records from experienced recorders without further question unless the date, region or habitat was especially unusual. Beginners should get specimens checked at first until they gain experience. Usually not identifiable to species from a photo - unless you are lucky and get exactly the right features! But the genus will usually be identifiable and it may be possible to narrow down to a small group of similar species.
  4. Voucher specimen should be retained. The Hoverfly Recording Scheme would require confirmation in the majority of cases, e.g. specimen having been checked by an acknowledged expert or brought along to an exhibition, Dipterists Day, etc.
  5. Even the most expert of recorders would seek a second opinion. Specimen may need to be submitted to experts elsewhere in the Europe for comparison with a wider range of material.


The category assigned to each species is shown in the checklist.
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