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Volucella inflata

 
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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: Volucella inflata Reply with quote

Volucella inflata (Fabricius, 1794)

Identification ease/difficulty: 2

StatusHabitat indicator statusSources of information
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Last edited by stuart on Wed Jun 01, 2005 9:56 pm; 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.

Volucella inflata (Fabricius, 1794)

Biology: A larva has been found in a sap run on Quercus, where it was probably feeding on other insect larvae. Females have been observed ovipositing in sap runs, including those caused by goat moth caterpillars, Cossus cossus. It is generally found in, or close to woodland with overmature trees, where adults visit flowers such as Rubus, Rosa and Heracleum in sunny, open rides and glades

Distribution: Locally frequent in heavily-wooded areas in the south of Britain, mainly south-east of a line from the Severn to the Wash. It is scarce in the more northerly parts of its range, and also in the East Midlands and East Anglia, probably because these areas are not well-wooded
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stuart
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Joined: 11 May 2005
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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).

VOLUCELLA INFLATA (Fabricius) NOTABLE

DISTRIBUTION Scattered localities in southern England as far north as Derbyshire, Cheshire and also into Wales.

HABITAT Old broadleaved woodland with a probable requirement for old and diseased trees with sap runs, especially those attacked by the goat moth Cossus cossus.

ECOLOGY The exact life history is unknown, though one recent observation suggests that it is possible that the larvae can feed on debris within the tunnels produced by caterpillars of the goat moth. However, it is probable that the larvae also exploit other situations because this species has been recorded from sites where goat moth is absent and it may prove to be more associated with sap runs. An association with wasps nests like its relatives does not seem likely and its distribution does not completely match that of the hornet Vespa crabro which would be its most likely host. Adults recorded from May to July, often visiting blossoms and flowers such as umbels.

STATUS An extremely local species but not infrequent in some areas, especially in Hampshire, Sussex and the south west where it is locally common. About 65 known post 1960 sites.

THREAT The clearance of old broadleaved woodlands for agriculture and intensive forestry and removal of old diseased trees, especially those with sap runs and infested with the goat moth. The shading out of rides and clearings within woodland.

MANAGEMENT Retain all old and diseased trees and ensure a continuity of these in the future. Maintain the presence of open rides, clearings and wood edges rich in flowers for adult feeding.
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