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Helophilus trivittatus

 
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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: Helophilus trivittatus Reply with quote

Helophilus trivittatus (Fabricius, 1805)

NomenclatureIdentification ease/difficulty: 2

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Last edited by stuart on Sun Jan 22, 2006 10:50 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 8:41 am    Post subject: Species account from the Provisional atlas Reply with quote

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

Helophilus trivittatus (Fabricius, 1805) Helophilus parallelus (Harris, 1776) in Kloet & Hincks (1976)

Biology: Larvae undescribed, but have been reared in captivity from eggs laid on an infusion of hay in water and from larvae found in semi-liquid mud mixed with animal dung. Speight (1998) describes it as a species of open wetlands including river-margins, seasonally flooded grassland and saltmarsh. Adults are found visiting a wide range of flowers, not infrequently well away from sites suitable for breeding

Distribution: This is a very widespread but usually infrequent species, found only as single specimens. There is no obvious association with any particular habitat (some records coming from very dry habitats, quite unsuitable for breeding), but it is possibly more frequent near the coast. This pattern of occurrence suggests that it is very mobile and it is regarded as a migrant in continental Europe
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