| Sub-family:EXORISTINAE |
Tribe: GONIINI |
|
| Synonyms: divisa Meigen, 1826
[=auriceps: Stephens, 1846, misident.] |
|
| Shaw & Ford (1991): - |
| Belshaw (1993): Hosts: in Europe an old record from Agrotis segetum (Lepidoptera: Noctuidae).
British distribution: S.England.
Habitat: localities indicate broadleaved woodland and heathland (FaIk, in press). In Europe usually found in open woods on sand (Herting, 1960).
Flight period: late March to early May (at least 50 records). |
| Tschorsnig (1994): [Salmacia]. Europe to Southern Sweden; NS NW RP BW BY NB / A. Thin woodland dry meadows. Mid March to End May (especially End-April) 1 generation. In dry grass or on the bare ground; on sandy ground locally frequent otherwise rare. Host unknown. |
| JNCC Calypterate Review (1996): DISTRIBUTION Recorded widely in Southern England (from Kent to Dorset to Somerset to Lincoln).
HABITAT Mainly heathland.
ECOLOGY Reared from the caterpillars of noctuid moths (Lepidoptera), including Agrotis segetum which feeds on the roots and lower parts of a wide range of root vegetables and other wild and cultivated plants. Adults from March to May, often on Sallow catkins; males patrol territories, perching on low foliage in warm sunny locations.
STATUS Only a few post-1960 localities, despite the distinctive appearance of this fly, suggesting a genuine decline. It used to be locally common at a good number of localities, and is still frequent on some of the East Anglian heaths. Eggs are laid on specific caterpillar food plants rather than directly on the caterpillars themselves, and the loss of these plants growing in appropriate conditions may be the crucial factor underlying the decline, though a decline in the abundance of the host moths cannot be ruled out.
THREAT Loss of woodland and heathland for agriculture or forestry; scrub, Pine and Bracken invasion of heath through lack of management, and accidental fires.
MANAGEMENT Maintain open rides and clearings in woods and a mosaic of vegetation types on heathland using rotational grazing, mowing or burning if necessary. |
| Shaw & Ford (2000): - |
| Comments: - |
| GBGRB: P |
GBNI: - |
IE: - |
GBCI: - |
| BRC #: 8402 |
BENHS: 4.3 12 |
GB Status: |
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|
| Legend: GBGRB=Great Britain, GBNI=Northern Ireland, IE=Ireland,
GBCI=Channel Islands (P=present or -=absent); BENHS indicates whether the BENHS
collection has it and which draw/column it is in. Status is taken from the JNCC
Calypterate Review (1996) and the JNCC Recorder package (1997). Synonyms were
taken from a number of sources but most notably the most recent Checklist of
British Diptera by Peter Chandler. |
| Acknowledgements: Many thanks to all the authors who let me
use their information to construct this database. If there are spelling mistakes
they were introduced by me during transcription and should not reflect on the
original authors. |
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