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Heringia latitarsis

 
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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: Heringia latitarsis Reply with quote

Heringia latitarsis (Egger, 1865)

NomenclatureIdentification ease/difficulty: 3

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.

Heringia latitarsis (Egger, 1865) Cnemodon latitarsis Egger in Coe (1953), Neocnemodon latitarsis (Egger) in Stubbs & Falk (1983)

Biology: The larvae are aphidophagous and have been found attacking the woolly aphid Dreyfusia picea on Abies. It has also been found feeding on aphids on Malus, Populus and Ulmus. A species of mature coniferous and mixed woodlands. Adults can be found visiting flowers (e.g. Anthriscus sylvestris, Prunus, Rubus, Rosa) along woodland rides and edges and settled on sunlit leaves. Speight (1998) describes them this species as largely arboreal, but descending to visit flowers

Distribution: There are a few scattered records mainly in the southern half of Britain, including Wales, but one from Midlothian, Scotland
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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).

NEOCNEMODON LATITARSIS (Egger) NOTABLE

DISTRIBUTION Records widely dispersed in England and as far north as Lancashire with an isolated one for Midlothian in Scotland. A southerly bias is shown.

HABITAT Uncertain;, it is known from woodland rides and edges, sallow scrub and commons.

ECOLOGY On the continent the larvae of this species have been found attacking the woolly aphid Dreyfusia piceae on fir Abies alba, so fir plantations may prove to be important in Britain. Adults recorded from May to August and have been observed feeding on the flowers of cow parsley Anthriscus sylvestris and tormentil Potentilla erecta.

STATUS Only a handful of widely dispersed post 1960 sites. The secretive and perhaps canopy dwelling nature of the adults combined with some taxonomic difficulty in the genus (females cannot yet be identified) may had led to under recording. N. latitarsis does not appear to be indigenous to the Scottish Highlands and may be a relatively recent addition to the British fauna, especially if a non-native conifer proves to be the normal larval situation.

THREAT Uncertain other than the clearance of woodland for agriculture and afforestation.

MANAGEMENT Maintain open rides and clearings in woods with flowers for adult feeding.
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