The list of species recorded in the Outer Hebrides (VC 110) is derived from records submitted by various organisations to the National Biodiversity Network Atlas. With the exception of records supplied by Outer Hebrides Biological Recording, we cannot verify the accuracy of the species identification nor whether these species are still present. Unfortunately not all the records submitted to NBN are publicly available; therefore, although we are aware that a species has been recorded on the islands, it does not always appear on the NBN distribution maps.

This is not a definitive list; it does not include many of the species recorded in literature or in museum collections; and although moths and butterflies are well documented in comparison with other insects, we are still adding new species to the list. If you record a species not currently listed, and submit your record to OHBR you will be requested to supply further information on how the species was identified to enable us to verify the record. Please note that some species can only be identified by dissection.

The species number is the new checklist number, used in the Checklist of the Lepidoptera of the British Isles (Agassiz, D.J.L., Beavan, S.D. & Heckford R.J. 2013). There has been a major review of the taxonomy of Lepidoptera so some of the species names have changed and some species have been moved to a different family. We have not adopted the trinomials used in the new checklist as most recorders only use binomials.

We would like to acknowledge the contribution made by John Kemp in revising this checklist and for his advice on the current status of a number of species.

A copy of the systematic checklist can be downloaded from the OHBR website. An annotated version, which provides additional information on the status and recorded flight times of the species within the islands and indicates which species require particular care with identification, is also available from the same source.