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Essex Field Club
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Species Account for Acinia corniculata

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Acinia corniculata  (Zetterstedt, 1819)
Diptera: other groups: Tephritidae

Acinia corniculata

 
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Taxonomic group: flies (other) (Diptera: other groups) - County data

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Records: 15
First Record: 2001
Latest Record: 2018

1992-on hectads: 4
Pre-1992 hectads: 0
Total hectads: 4
Additional Phenology Data

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Acinia corniculata
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Essex Red Data List comment
Recorded from 1 out of 57x10km.sq. records in county

Species text
This picture winged fly is recorded from scattered localities in southern England, but in Falk (1991) there were only three known post 1960 sites. In 1995 it was recorded from an old covered reservoir in Peckham. It is not however one of the tephritid species that has shown an increase in range or frequency in recent years. The species occurs in meadows, fens and drier grassland. The larvae have been reared in Germany from flowerheads of the brown knapweed Centaurea jacea, but in England it almost certainly uses common knapweed C. nigra. Management should maintain a rich and varied flora including strong populations of knapweed, using rotational grazing regimes on larger sites to produce a mosaic of vegetation types (Falk, 1991). Like most British tephritids this species has a life system strategy where the larvae develop in 20 to 40 days and pupate in the host tissue, in this case the dry fruit heads, which exist throughout the winter (White, 1988). Hence cutting would decimate the population. Extensive areas of knapweed should be left uncut each year to ensure continuity. References

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Habitats

Broad Habitat Data (based on 9 records with habitat information)

Broad subhabitat Data (based on 1 records with subhabitat information)

Structural Habitat Data (based on 6 records with structural habitat information)

Habitat Detail and Method (based on 15 records with habitat detail and method information)

Recorded management for locations with Acinia corniculata

Recorded substrate and hydrology for locations with Acinia corniculata

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