Revision of the Psilota Meigen, 1822 flower flies (Diptera: Syrphidae) of Australia
Author
Young, Andrew D.
Author
Skevington, Jeffrey H.
Author
Steenis, Wouter Van
text
Zootaxa
2020
2020-02-17
4737
1
1
127
journal article
24026
10.11646/zootaxa.4737.1.1
91c2f25f-409c-4319-bc7c-feb9e4210de1
1175-5326
3669490
C38FB007-98AE-4E4C-8A18-B1C75588815E
Psilota femoralis
Schiner, 1868
(Species plate:
Fig. 19
; Genitalia:
Fig. 42
G–H; Map:
Fig. 56B
)
Psilota femoralis
Schiner, 1868: 369
.
Type
locality: Sydney,
New South Wales
,
Australia
Diagnosis:
Face black, densely grey pollinose, with white pile. Thorax black. Hind femur with a distinct rounded apicoventral setulose carina. Hind tibia with basoventral spur. Calypter with dark brown border. Halter dark brown. Abdomen black. Outer lobe of surstylus sharply hooked back towards base of surstylus at apex. Body length:
7.9–13.6 mm
.
Description: MALE:
Head
:
Head black, face densely grey pollinose. Face white pilose, frons and vertex black pilose. Scape and pedicel orange-brown, postpedicel brown. Postpedicel oval, approximately 1.5 times as long as wide. Eye densely white pilose.
Thorax
:
Thorax black. Legs mostly black, with extreme apices of femora and most of tibiae orange-brown. Hind femur with a distinct rounded apicoventral setulose carina. Hind tibia with a basoventral spur. Pleuron densely grey pollinose. Pile on pleuron white. Pile on scutum and scutellum mostly black, with some shorter yellow hairs on the scutum. Wing colourless, bare on anterior half of cells bm and cua. Cells c, dm, r
1
with small bare patches at base. Alula completely microtrichose. Halter dark brown. Calypter with border dark brown.
Abdomen
:
Abdomen black. Tergite 2 mostly white pilose, with posterior 1/5th black pilose. Tergite 3 white pilose anteriorly, black pilose posteriorly. Tergite 4 with mixed black and white pile. Sternites black, and white pilose.
Genitalia
:
Epandrium compact, about as long as tall. Cercus approximately triangular, slightly elongate. Outer lobe of surstylus inserted near top of inner lobe, curved downwards slightly on apical one-third, with apex of lobe thickened and hooked sharply downwards and backwards towards base of surstylus at a 90° angle. Inner lobe of surstylus broadening over entire length, with a slight ventral excavation at one-third its total length, rounded at apex. Ejaculatory apodeme with small ventral projection. Gonostylus not darkened.
FIGURE 19.
P
.
femoralis
Schiner. A
) male dorsal habitus, B) male anterolateral face, C) male lateral habitus. Scale bar =1 mm.
FEMALE:
Identical except for normal sexual dimorphism.
Specimens examined:
AUSTRALIA
:
New South Wales
:
24 km
W of South Grafton,
-29.687439
152.692319
,
3.x.1985
, R. Eastwood, GDCBReg_19564; GDCBReg_19566 (
2♂♂
, GDCB);
5 km
East of Bilpin, Blue Moun- tains,
-33.462750
150.572836
,
22.ix.1977
, N.W. Rodd, AustralianMuseumK410292 (
1♀
, AM); Blue Mtn.,
40km
ENE Glen Innes,
-29.641186
152.109278
,
15.xii.1984
, D.K. Yeates, UQIC_Reg94570-94571 (
2♂♂
, QM); Broad- water N. N.S.W.,
-29.050325
153.427539
,
22.viii.1981
, D. Yeates, UQIC_Reg94584 (
1♂
, QM); Broadwater Nat. Pk.,
-29.050325
153.427539
,
6.ix.1981
;
26.viii.1984
, G. Daniels; D.K. Yeates, GDCBReg_19654; UQIC_ Reg94580–94581; UQIC_Reg94583; UQIC_Reg94587 (
5♂♂
, QM, GDCB); Broadwater,
-29.050325
153.427539
,
22.viii.1981
, D. Yeates, UQIC_Reg94585 (
1♂
, QM); French’s Forest,
-33.749000
151.233100
,
9.ii.1936
, D.F. Wa- terhouse, ANIC29034913 (
1♂
, ANIC); Gibraltar Ra. N.P., Waratah track,
-29.548814
152.286936
, on
Leptospermum
sp. blossom,
10–12.xi.1984
, D.K. Yeates, UQIC_Reg94566–94567 (
2♂♂
, QM); Goonderra Ridge, Royal Na- tional Park,
-34.114342
151.046586
,
29.i.1979
;
2.x.1978
;
21.iii.1979
;
22.viii.1976
;
24.x.1976
;
28.ix.1975
;
4.x.1978
;
6.x.1975
;
2.x.1978
;
28.ix.1975
;
6.x.1975
, G. and A. Daniels, GDCBReg_19682; GDCBReg_19672–19674; GDC- BReg_19701–19702; GDCBReg_19706; GDCBReg_19708–19711; GDCBReg_19750–19758; GDCBReg_19761; GDCBReg_19747–19748; GDCBReg_19648–19652 (
21♂♂
,
7♀♀
, GDCB); Ku-ring-gai Chase National Park near Sydney,
-33.637567
151.233900
,
26.ix.1971
, G. Daniels, GDCBReg_19640 (
1♂
, GDCB); Ku-ring-gai, Chase Na- tional Park,
-33.637567
151.233900
,
2.x.1972
, G. and A. Daniels, GDCBReg_19727 (
1♀
, GDCB); Lawson, Blue Mtns.,
-33.716667
150.433333
,
23.x.1976
, G. Daniels, G. Daniels Collection, GDCBReg_19765 (
1♂
, GDCB); Mount Boyce, Blue Mts.,
-33.615789
150.266597
,
30.xi.1975
, G. Daniels, G. Daniels Collection, GDCBReg_19723 (
1♂
, GDCB); Mt. Kuring-Gai,
-33.645433
151.131150
,
27.ix.1950
, B. McMillan, UQIC_Reg94666 (
1♂
, QM); Mt. Westmacott nr. Waterfall,
-34.138853
150.980736
,
24.iii.1979
, G. Daniels, GDCBReg_19722 (
1♂
, GDCB); Mt. Westmacott, nr Waterfall,
-34.138853
150.980736
,
24.iii.1979
, G. Daniels, GDCBReg_19657–19659 (
3♂♂
, GDCB); Royal National Park,
-34.114342
151.046586
,
29.viii.1976
;
6.x.1975
, G. and A. Daniels, GDCBReg_ 19745–19746 (
2♂♂
, GDCB); Stanwell Tops,
-34.219903
150.991808
,
5.ii.1978
;
9.x.1977
, G. Daniels, GDCBReg_ 19742–19743; GDCBReg_19661–19662; GDCBReg_19717–19718 (
6♂♂
, GDCB);
Queensland
: Blue Mtn.,
4km
NE Stanthorpe, SE Qld.,
-28.631058
151.985794
,
977m
, summit,
28.ix.1987
, D.K. Yeates, UQIC_Reg94569 (
1♂
, QM); Brisbane, Mount Coot-tha,
-27.487778
152.950558
,
170m
, hilltop,
7.iii.1998
;
13.iv.1997
, J. & A. Skevington, UQIC_Reg94602; UQIC_Reg94551 (
2♂♂
, QM); Brisbane,
-27.526975
153.040322
,
11.x.1958
;
7.ix.1927
, M. Permiakoff; J. Mann, UQIC_Reg94708; UQIC_Reg94823 (
2♂♂
, QM); Brown Lake, N. Stradbroke Is., S.E.Q.,
-27.490108
153.432378
, on
Leptospermum flavescens
blossom,
21–24.ix.1984
, D.K. Yeates & R. de Keyzer; D.K. Yeates, UQIC_Reg94575–94578 (
4♂♂
, QM); Moreton Island, Mount Tempest,
-27.149989
153.399994
,
285m
, hilltopping,
20.ix.1997
, J. & A. Skevington, UQIC_Reg94727–94729 (
3♂♂
, QM); Mount Moffatt, Mt. Moffatt sect., Carnarvon Nat. Pk.,
-25.165167
147.840419
,
26.ix.1986
, D.K. Yeates, UQIC_Reg94572–94573 (
1♂
, QM); Mount Tinbeerwah, nr Cooroy,
-29.950000
152.433333
,
29.ix.1985
;
6.ix.1980
;
24.viii.1980
;
6.ix.1980
, G. and A. Daniels, GDCBReg_19555–19556; GDCBReg_19558; GDCBReg_19665; GDCBReg_19675–19676; GDC- BReg_19677 (
6♂♂
,
1♀
, QM; GDCB); Mt. Marlay, near Stanthorpe, S.E.Q.,
-28.653583
151.946908
,
6–9.xi.1984
, D.K. Yeates; Noosa,
-26.364544
152.967669
,
27.viii.1959
, F.A. Perkins, UQIC_Reg94718 (
1♂
, QM); Tin Can B.,
-25.919297
153.003278
,
Leptospermum
+ shrubs,
21.viii.1957
, F.A. Perkins, sweeping, UQIC_Reg94719 (
1♀
, QM); Wild Horse Mountain near Beerburrum,
-26.916667
152.150000
,
28.ix.1985
;
16–17.ix.1985
, G. and A. Daniels; R. Eastwood, GDCBReg_19547; GDCBReg_19553–19554 (
3♂♂
, GDCB); Sunnybank,
18.ix.1927
, UQIC_Reg94683 (
1♂
, QM); Gordonvaie, summit of Walsh Pyramid,
-17.130158
145.800111
,
13.vi.1998
, M. Polak, CNC_
Diptera
255047 (
1♀
, CNC); Brisbane, Mount Coot-tha,
-27.483333
152.950000
,
170m
, hill- top,
19.ix.2014
;
9.ix.1972
;
10.viii.1997
, J.H., A.M. and A.W. Skevington; A.M. Hemmingsen; J. & A. Skevington & S. Winterton, hand collected, UQIC_Reg94552 (
1♂
, QM); Jeff_Skevington_Specimen26984 (
1♂
, CNC); Moreton Island, Mount Tempest,
-27.150000
153.400086
,
285m
, hilltopping,
21.ix.1997
, J.&A. Skevington, CNC483880 (
1♂
, CNC);
Tasmania
: Flinders Island: Wingaroo flats: dragon lagoon,
-39.869400
147.967000
, on flowering
Leptospermum
,
26.iii.2014
, S. Grove, CNC_
Diptera
253751; CNC_
Diptera
253754 (
1♂
,
1♀
, TMAG).
Discussion:
Psilota femoralis
displays more divergence in COI sequences than other
Psilota
and may represent a species complex. However, no morphological characters could be found to distinguish specimens that were more similar based on COI than others, and it was therefore treated as a single species. This species has been collected on
Leptospermum
blossoms. The
holotype
of this species was unavailable for study but identified material from various collections from across
Australia
match the original description well.