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Baccha elongata

 
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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: Baccha elongata Reply with quote

Baccha elongata (Fabricius, 1775)

NomenclatureIdentification ease/difficulty: 1

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Last edited by stuart on Sun Jan 22, 2006 11:36 am; edited 1 time in total
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stuart
Site Admin


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

PostPosted: Sun May 29, 2005 8:40 am    Post subject: Species account from the Provisional atlas Reply with quote

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

Baccha elongata (Fabricius, 1775) Baccha obscuripennis Meigen, 1822 has been considered a distinct species in previous British literature

Biology: This species is found in shady places such as woodland rides and edges, hedgerows and mature gardens, where adults may be seen hovering low amongst ground-layer plants. The larvae are aphidophagous, preying on a variety of ground-layer species in shaded situations, e.g. Uromelan jaceae on Centaurea scabiosa, Brachycaudina napelli on Aconitum, and the bramble aphid, Sitobion fragariae on Rubus. It overwinters as a larva

Distribution: Widely recorded throughout Britain, but like most woodland species, scarce or absent from poorly-wooded areas such as the East Anglian fens and the Scottish islands. There is considerable uncertainty about the status of B. obscuripennis which has often been regarded as a distinct species. Most records submitted to the scheme are attributed to Baccha spp., but analysis of those where separation has been attempted do not suggest any differences in range, flight period or habitat preference
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