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Melangyna quadrimaculata

 
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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: Melangyna quadrimaculata Reply with quote

Melangyna quadrimaculata (Verrall, 1873)

Identification ease/difficulty: 3

Sources 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.

Melangyna quadrimaculata (Verrall, 1873) Syrphus quadrimaculatus Verrall in Coe (1953)

Biology: The larvae are aphidophagous, and appear to have a clear preference for adelgids on Abies. A woodland species which overwinters as a puparium and adults are active very early in the spring when they usually visit flowering trees such as Salix and Corylus catkins in clearings and rides. According to Speight (1998) they are associated with mature deciduous woodland where overmature trees are present and normally visit taller trees in flower when these are available

Distribution: Scarce but widely distributed. Possibly under-recorded because of its early flight period
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