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Xylota florum

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

PostPosted: Sat May 28, 2005 5:39 pm    Post subject: Xylota florum Reply with quote

Xylota florum (Fabricius, 1805)

Identification ease/difficulty: 3

StatusHabitat indicator statusSources of information
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Last edited by stuart on Sun Jan 22, 2006 10:40 am; edited 1 time in total
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stuart
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Joined: 11 May 2005
Posts: 737
Location: Peterborough, UK

PostPosted: Sun May 29, 2005 8:41 am    Post subject: Species account from the Provisional atlas Reply with quote

Species account from Provisional atlas of British hoverflies, Ball & Morris, 2000.

Xylota florum (Fabricius, 1805)

Biology: The larvae are associated with decaying wood and sap. An association with Populus nigra has been claimed, based on rearing records, but this dates from before it was separated from  X. coeruleiventris and X. meigeniana so the identity of these records must be in some doubt. Adults are usually found in damp places in woodland such as stream-sides, where they can be seen sunning on logs, including those partially submerged in water. There would appear to be a strong concentration of records on the acid heaths of south-east England.

Distribution: A scarce species of southern Britain with scattered records extending northwards to Cumbria and Durham, but with most records from well-wooded areas of southern-central England, and also from South Wales
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stuart
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Location: Peterborough, UK

PostPosted: Sun May 29, 2005 9:08 am    Post subject: Data sheet from National Review of Diptera, Falk, 1991 Reply with quote

Datasheet from the Review of Scarce and Threatened Diptera, Falk (1991).

XYLOTA FLORUM (Fabricius) NOTABLE

DISTRIBUTION An essentially southern species with records extending as far north as Durham and to Caernarvonshire in Wales.

HABITAT Old broadleaved woodland especially by water or in damp valleys. Dead wood or old and diseased trees are a requirement.

ECOLOGY Larvae develop in dead wood, possibly of ash, beech or oak. Adults recorded from June to August and may be found on sunlit foliage or trunks, including logs resting in water or on marsh, possibly giving a clue as to the breeding site.

STATUS Regular but very local in old woodlands in the south, especially the New Forest, and also well established at some sites as far north as Yorkshire. About 50 known post 1960 sites.

THREAT The clearance of old woodland for intensive forestry and agriculture and removal of the dead wood within.

MANAGEMENT Retain any dead wood and post mature or diseased trees ensuring a continuity of these in the future. Maintain open rides and clearings.
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