Part 2: Nematocera and Aschiza not dealt with by Falk (1991) - JNCC

Status A poorly known species, which may prove to be
more widespread, at least in the Scottish Highlands, in the
future. Currently there is inadequate information to assess
the risk of extinction. Status revised from RDB 1 (Shirt
1987) and RDB K (Falk 1991).
Threats Uncertain other than clearance of Caledonian pine
woodland in the Spey Valley and elsewhere for
afforestation or improved pasture.
Management and conservation Uncertain other than
maintaining habitat diversity within native pine forest.
Published sources Disney (1983).
PHORA PENICILLATA
A scuttle fly
Order DIPTERA
Phora penicillata Schmitz, 1920
DATA DEFICIENT
Family PHORIDAE
Identification Characters given by Disney (1985).
Distribution Only known in Britain from Rothiemurchus,
Easterness (14 to 17 June 1982, P.J. Chandler).
Habitat Caledonian pine (Pinus) forest.
Ecology Biology unknown; another species of Phora has
larvae feeding on root aphids deep in soil. Adults of this
genus form aerial swarms of males, generally using tips of
branches in rides and at woodland edge as markers. Adults
of P. penicillata have been recorded abroad visiting flowers
of the genus Peucedanum.
Status Unclear, as there is only one site known but it may
be found to occur elsewhere in the central Scottish
Highlands. Currently there is inadequate information to
assess the risk of extinction. Not listed in Shirt (1987) or
Falk (1991).
Threats Uncertain other than clearance of Caledonian pine
forest for afforestation or improved pasture.
Management and conservation Uncertain other than
maintaining habitat diversity within native Pinus forest.
Published sources Disney (1985).
males which generally use the tips of branches in rides and
at woodland edge as markers. Adult records in June.
Status A poorly known species, probably restricted to the
central Highlands of Scotland, which may prove to be more
widespread there in the future. Currently there is inadequate
information to assess the risk of extinction. Status revised
from RDB 1 (Shirt 1987) and RDB K (Falk 1991).
Threats Afforestation of upland areas with associated loss
of seminatural vegetation and drainage of marshy areas.
Management and conservation Uncertain other than
maintaining the existing mosaic of vegetation in upland
areas.
Published sources Disney (1983).
PHORA SPEIGHTI
A scuttle fly
Order DIPTERA
Phora speighti Disney, 1982
Identification Keyed by Disney (1983).
DATA DEFICIENT
Family PHORIDAE
Distribution The only British record is of both sexes, from
Oxford (26 June 1918, A.H. Hamm). It is otherwise known
from Ireland, where it was found in a Malaise trap operated
in a Dublin garden.
Habitat Unclear; the known records from the British Isles
are from urban/suburban situations.
Ecology Biology unknown; another species of Phora has
larvae feeding on root aphids deep in soil. Adults of this
genus visit flowers for nectar and form aerial swarms of
males, which use tips of branches in rides and at woodland
edge as markers.
Status Unclear; it may have been overlooked because of
under recording of this family. Currently there is inadequate
information to assess the risk of extinction. Not listed in
Shirt (1987) or Falk (1991).
Threats Unclear.
Management and conservation Unclear.
PHORA PRAEPANDENS
A scuttle fly
Order DIPTERA
Phora praepandens Schmitz, 1927
DATA DEFICIENT
Family PHORIDAE
Published sources Disney (1982c, 1982e, 1983).
PLECTANOCNEMA NUDIPES
A scuttle fly
DATA DEFICIENT
Order DIPTERA
Family PHORIDAE
Identification Keyed by Disney (1983).
Distribution Only recorded from two localities in the
Scottish Highlands: Ben Vorlich in the Beinn Achaladair
range, Perthshire (19 June 1932, F.W. Edwards); Insh
Marshes RSPB, Easterness (16 June 1982, R.H.L. Disney).
Habitat Associations are unknown.
Ecology Biology unknown; another species of Phora has
larvae feeding on root aphids deep in soil. Adults of this
genus visit flowers for nectar and form aerial swarms of
Plectanocnema nudipes (Becker, 1901)
Identification Keyed by Disney (1983).
Distribution Scattered localities in southern England: Leigh
Woods (= Avon Gorge NNR) (1972), Somerset; Blean
Woods NNR, Kent (1969); Butley Thicks (1910) and
Barton Mills (1940, 1963), Suffolk; Alderfen Broad,
Norfolk (1983); Wicken Fen NNR, Cambridgeshire (1993);
Stoke Wood (1900, 1901, 1907, 1911) and Woolhope
(1903, 1911), Herefordshire. There is also a record from the
south of Scotland: Gorge of Avon, Lanarkshire (1909).
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