Pine hoverfly (Blera fallax)

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Pine hoverfly
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Pine hoverfly fact file

Pine hoverfly description

KingdomAnimalia
PhylumArthropoda
ClassInsecta
OrderDiptera
FamilySyrphidae
GenusBlera (1)

The pine hoverfly is the only hoverfly with a red-tipped black abdomen and a yellow face (3).

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Pine hoverfly biology

Little is known of the ecology of this species.

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Pine hoverfly range

This hoverfly is thought to have declined; until very recently it was found in 7 sites (2) but it is now restricted to just two locations in north-east Scotland (4).In Europe, where this species is found in mountainous areas, it is declining and thought to be under threat (2).

You can view distribution information for this species at the National Biodiversity Network Gateway.
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Pine hoverfly habitat

The pine hoverfly inhabits native pine woods (2), where it breeds in wet rot holes on rotting pine stumps (4).

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Pine hoverfly status

Classified as Endangered in Great Britain and listed as a priority species under the UK Biodiversity Action Plan (2).

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Pine hoverfly threats

At both of the current sites supporting this species, there are very few suitable pine stumps with rot holes (4). This species is also threatened by unsuitable woodland management, and possibly by over-collection by entomologists(2).

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Pine hoverfly conservation

This species is a priority species under the UK Biodiversity Action Plan (UK BAP) (2). The RSPB has taken on the role of ‘lead partner’ for this and another rare hoverfly, the aspen hoverfly (Hammerschmidtia ferruginea) since they were found on RSPB-owned sites. With Scottish Natural Heritage, they are funding a programme of work on these species, carried out by the Malloch Society (4). For details of this work please follow the link below.

The UK Biodiversity Action Plan for this species is available at UK BAP.
View information on this species at the UNEP World Conservation Monitoring Centre.
There may be further information about this species available via the National Biodiversity Network Gateway.
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Find out more

For more on Diptera species, see:

For information on invertebrates and their conservation, see:

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Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
arkive@wildscreen.org.uk

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Glossary

Abdomen
In arthropods (crustaceans, insects and arachnids) the abdomen is the hind region of the body, which is usually segmented to a degree (but not visibly in most spiders). In crustacea (e.g. crabs) some of the limbs attach to the abdomen; in insects the limbs are attached to the thorax (the part of the body nearest to the head) and not the abdomen. In vertebrates the abdomen is the part of the body that contains the internal organs (except the heart and lungs).
Entomologists
People who study insects.
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References

  1. National Biodiversity Network Species Dictionary (January 2004):
    http://www.nhm.ac.uk/nbn
  2. UK Biodiversity Action Plan (January 2004):
    http://www.ukbap.org.uk
  3. RSPB Biodiversity (January 2004):
    http://www.rspb.org.uk/biodiversity/RSPBandbiodiversity/lead_partner/inverts/pinehoverfly/index.asp
  4. The Malloch Society (January 2004):
    http://www.mallochsociety.org.uk/index.php?sn=pr&ssn=sc&id=101
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Image credit

Pine hoverfly  
Pine hoverfly

© National Museums of Scotland

National Museums of Scotland
g.rotheray@nms.ac.uk

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