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Meligramma guttatum

 
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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: Meligramma guttatum Reply with quote

Meligramma guttatum (FallÚn, 1817)

NomenclatureIdentification ease/difficulty: 4

StatusHabitat indicator statusSources of information
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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.

Meligramma guttatum (FallÚn, 1817) Syrphus guttatus FallÚn in Coe (1953), Melangyna guttata (FallÚn) in Stubbs & Falk (1983)

Biology: The larvae are aphidophagous, and have been reared from aphids on Acer pseudoplatanus. Usually found in woodland, especially wooded river banks, wet woodland and carr, where Salix or Alnus occurs. Adults are found in clearings where they visit flowers, especially white umbels

Distribution: Records are few but widely scattered. In the field, this species appears very similar to common Platycheirus species (e.g. P. albimanus, P. scutatus) and is probably overlooked
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stuart
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Joined: 11 May 2005
Posts: 737
Location: Peterborough, UK

PostPosted: Sun May 29, 2005 9:09 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).

MELANGYNA GUTTATA (Fallen) NOTABLE

DISTRIBUTION Records scattered widely in England, Wales and Scotland including the Inner Hebrides and the Isle of Man.

HABITAT Broadleaved woodland.

ECOLOGY Larvae aphidophagous and have been found on the leaves of sycamore. Adults recorded from June to September in woodland rides and edges, usually feeding on umbels.

STATUS Widespread but extremely local with about a dozen known post 1960 sites. Probably under recorded to some extent, though some decline seems to have occurred. It seems to occur at low population levels at a site. Status revised from RDB3 (Shirt 1987).

THREAT Clearance of broadleaved woodland for agriculture and intensive forestry. Shading out of rides and clearings within woodland.

MANAGEMENT Maintain flower rich rides, clearings and wood edges and ensure a good age structure of trees in woodland, including very old trees.
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