Wednesday 22 May
In the News: Nature health check finds UK wildlife to be in trouble

What’s the World’s Favourite Species?
Find out here.| Kingdom | Animalia |
| Phylum | Arthropoda |
| Class | Insecta |
| Order | Diptera |
| Family | Syrphidae |
| Genus | Doros (1) |
This spectacular large, slender hoverfly is a wasp mimic; its body shape and black and yellow markings make it very similar in appearance to a wasp (4). The 'model' for this mimicry is thought to be the solitary wasp Argogorytes mystaceaus. The hoverfly receives protection as a result of this mimicry, as potential predators believe that it is either able to sting or is extremely distasteful (5).
Little is known of the biology of this species; the life history is largely a mystery but it seems likely that it is complex and specialised (6). Adults fly in June, males are rarely seen, and females fly only in sunny conditions (5). Evidence suggests that the larvae are predatory, and it has been speculated that they may be associated with the ant species Lasius fulginosus, feeding on aphids that the ants have herded (5).
TopSince 1990 only a few sites in Great Britain have been found to support this species (5). Most of these are in the south and southeast of England (5). It has also been found in Scotland on Arran and the Isle of Mull (6). The range of this hoverfly extends from southern Norway and Finland down to central Spain, and from Ireland extending east through much of central and southern Europe, through Eurasia, reaching the Pacific coast, encompassing Japan and China (5).
TopThe wasp hoverfly seems to prefer woodland edge or scrubby habitats; in England all of the occupied sites feature flower-rich calcareous grassland, where there are ant mounds, and bramble (Rubus species) present. Most sites are on south-facing slopes or in sheltered valleys, suggesting that the hoverfly is 'thermophilous', literally 'heat-loving' (5).
TopClassified as Vulnerable in Great Britain (3).
TopAlthough the factors responsible for the decline of this species are not known (6), it is thought that habitat loss and alteration through human activity may be important (5).
TopThe wasp hoverfly is a UK Biodiversity Action Plan (UK BAP) priority species, and a Species Action Plan has been produced to aid its conservation. This plan aims to maintain the current populations, and to increase the size of these populations before 2010 (6). Many of the current populations occur within Sites of Special Scientific Interest (SSSIs) (6), and English Nature has funded research and survey work on this species (5).
TopInformation authenticated by Jon Webb, English Nature:
http://www.english-nature.gov.uk/
More »Related species
Image credit
© David Element
David Element
david.element@ukgateway.net
http://www.david.element.ukgateway.net
Link to this photo
Embed this ARKive thumbnail link by copying and pasting the code below.
Terms of Use - The displayed thumbnail may be used as a link from your website to ARKive's online content for private, scientific, conservation or educational purposes only. It may NOT be used within Apps.
Read more about
MyARKive
MyARKive offers the scrapbook feature to signed-up members, allowing you to organize your favourite ARKive images and videos and share them with friends.
Terms and Conditions of Use of Materials
Copyright in this website and materials contained on this website (Material) belongs to Wildscreen or its licensors.
Visitors to this website (End Users) are entitled to:
End Users shall not copy or otherwise extract, alter or manipulate Material other than as permitted in these Terms and Conditions of Use of Materials.
Additional use of flagged material
Green flagged material 
Certain Material on this website (Licence 4 Material) displays a green flag next to the Material and is available for not-for-profit conservation or educational use. This material may be used by End Users, who are individuals or organisations that are in our opinion not-for-profit, for their not-for-profit conservation or not-for-profit educational purposes. Low resolution, watermarked images may be copied from this website by such End Users for such purposes. If you require high resolution or non-watermarked versions of the Material, please contact Wildscreen with details of your proposed use.
Creative commons material
Certain Material on this website has been licensed to Wildscreen under a Creative Commons Licence. These images are clearly marked with the Creative Commons buttons and may be used by End Users only in the way allowed by the specific Creative Commons Licence under which they have been submitted. Please see http://creativecommons.org for details.
Any other use
Please contact the copyright owners directly (copyright and contact details are shown for each media item) to negotiate terms and conditions for any use of Material other than those expressly permitted above. Please note that many of the contributors to ARKive are commercial operators and may request a fee for such use.
Save as permitted above, no person or organisation is permitted to incorporate any copyright material from this website into any other work or publication in any format (this includes but is not limited to: websites, Apps, CDs, DVDs, intranets, extranets, signage, digital communications or on printed materials for external or other distribution). Use of the Material for promotional, administrative or for-profit purposes is not permitted.