KEYS TO SWEDISH GENERA AND SPECIES OF DOLICHOPODIDAE
by
I.Ya. Grichanov
Lateral scutellars at least 1/3 as long as median setae ... 6
3.
Face distinctly bicolorate, with epistome brown or greyish pollinose and
clypeus more or less shining ... 4
Face entirely dusted, monochrome ... 5
4.
Femora mostly black; postocular and proepisternal bristles whitish; 1.4-1.7.
Fig. 125 ... micacea Loew
Femora mostly yellow; proepisternal bristles black, postoculars partly
black; 2.0-2,5 ... annulitarsa von Roser
5.
Legs including front coxa mainly yellow; male cercus without strong apical
setae; 1.6-2.5. Fig. 111 ... plumbella Meigen
Legs black, with yellow knees; male cercus with a strong spiniform apical
seta; 1.6-2.1.Fig.
117 ... senicula Kowarz
6.
Dorsocentral bristles not gradually decreasing anteriad; either 5 strong
setae with 1st one often reduced or lost and rest setae equally
long, or 4 setae with 2nd one shorter than rest, or 3 dorsocentrals
equally long ... 7
Dorsocentral bristles gradually decreasing from long setae posteriad into
short setae anteriad, having usually no long and strong presutural bristles
in their rows ... 11
7.
Only 1 supraalar bristle; distal part of CuA1 at least 2 times
longer than m-cu; legs mainly brown with tibiae and tarsal bases
often yellow; 2.0-2.3. Fig. 100...
betulae
Ringdahl
2 strong supraalar bristles; legs including tibiae mainly black; distal
part of CuA1 only slightly longer or shorter than m-cu
... 8
8.
4 strong dorsocentrals with 2nd bristle distinctly shorter than
rest; distal part of CuA1 slightly longer than m-cu;
2.0-2.7. Fig. 122 ... truncorum Meigen
4 strong dorsocentrals equally long or practically so, or when 5 bristles
the front one is shorter than rest; distal part of CuA1 distinctly
shorter than m-cu; 2.5-4.0 ... 9
9.
Mesonotum uniformly dusted greyish or whitish; otherwise similar to M.
petrophila; 3.2-3.4. Fig. 91 ... tenuicauda Loew
Mesonotum longitudinally striped brownish ... 10
10.
Face including clypeus entirely covered with greyish dusting; arista subapical;
anteroventral bristles at tip of hind femur longish; m-cu perpendicular
to longitudinal wing axis; 2.7-4.0.Fig.
92, 130 ... jacula (Fallιn)
Clypeus at least partly shining metallic; arista apical; anteroventral
bristles at tip of hind femur short; m-cu distinctly oblique; 2.7-3.4.
Fig. 115 ... petrophila Kowarz
11.
Scape (often also pedicel) yellow; usually more than 6 strong dorsocentrals
gradually decreasing in size anteriad; male cercus usually without apical
bladelike setae ... 12
Antenna entirely black, or in immature specimens slightly reddish; usually
no more than 5 strong dorsocentrals; anteriormost strong bristles (usually
at suture or just presuturally) at least 3 times size of anterior short
setulae; cercus usually with dorsoapical flattened, bladelike setae ...
22
12.
Apical part of M1+2 vein practically straight ... 13
Apical part of M1+2 vein distinctly curved ... 15
13.
Front femur with long anteroventral setae in apical ½ and long posteroventral
setae at base; mid femur with long anteroventral setae; arista 1.5 times
longer than antenna; 2.3-2.9. Fig. 127 ... fasciata Frey
Front femur with short ventral cilia ... 14
14.
Mid femur with short anteroventral setae; arista no more than 1.5 times
longer than antenna; halter yellow; 2.2-3.2. Fig. 120 ... striata
Parent
Mid femur with anteroventral setae mostly longer than diameter of femur;
arista 2-3 times longer than antenna; halter brown; 2.7-3.0. Fig. 118 ...
setiventris
Thuneberg
15.
Halter dark; hypandrium expanded subapically, with drawn-out apex and sigmatoid
subapical indentations; aedeagus sharply tridentate ... 16
Halter yellow; aedeagus usually without lateral dents; hypandrium various
(males only) ... 17
16.
Postocular cilia brown; surstylus distinctly trilobate at apex; 2.2-2.6.
Fig. 126 ... zinovjevi Negrobov
Postocular cilia whitish; surstylus bilobate; 2.9-3.5. Fig. 119 ... signaticornis
Loew
17.
Lower postocular cilia brown black, sometimes with admixture of light cilia
... 18
Lower postocular cilia yellow ... 19
18.
Hind tibia with 3 to 5 strong subapical dorsal bristles (see below) ...
obscura
(Zetterstedt)
Hind tibia without distinctive dorsal bristles at tip; hypandrium symmetrical,
expanded subapically (ventral view); 3.0-4.0.Fig.
102 ... dichrocera Kowarz
19.
Hind tibia with a short strong curved spine anteriorly at tip; the spine
consisting of 2-3 coalesced setae; hypandrium simple, symmetrical, expanded
apically (ventral view); 3.2-3.6.Fig.
109 ... nitida (Macquart)
Hind tibia without curved spine at tip ... 20
20.
Hind tibia with 3 to 5 strong subapical dorsal bristles; hypandrium with
2 long subbasal lateral hooked lobes of unequal length; surstyli strongly
swollen basoventrally; 3.5-4.9.Fig.
110 ... obscura (Zetterstedt)
Hind tibia without distinctive bristles above near tip, at most a very
small dorsal preapical bristle ... 21
21.
Hypandrium with right basal expansion and left subapical internal projection
(ventral view); 2.5-3.0.Fig.
116 ... pinicola Kowarz
Hypandrium symmetrical, slightly swollen apicad, with 2 pointed midlateral
lobes; 3.2-4.0. Fig. 99 ... adjaniae Gosseries
22.
Large species: 3.7-4.6 mm; clypeus brilliant shining metallic green without
lateral pruinosity; m-cu 1.5-2 times longer than distal part of
CuA1; tibiae yellow to darkish brown; acrostichals very small
and extremely numerous; 3.7-4.5. Fig. 128...
diadema
(Linnaeus)
Smaller species, less than 3.5 mm; clypeus usually dull metallic colour,
usually covered with pruinosity laterally, m-cu only slightly longer
or shorter than distal part of CuA1 ... 23
23.
At least front and mid tibiae yellow or pale brownish; distal part of CuA1
at least 2 times longer than m-cu ... 24
Legs including tibiae blackish or dark brown, at most knees narrowly yellow
... 26
24.
CuA1 simple at base, not obviously thicker than M1+2;
coxal and femoral hairs and bristles more pale brownish; 1.8-2.2. Fig.
113 ... pallipes
(Zetterstedt)
Males with a strong thickening at base of CuA1; the thickening
tapered and about ½ as long as discal cell; females with CuA1
at base markedly thicker than M1+2 at base; coxal and femoral
hairs and bristles conspicuously whitish; 2.0-2.5 ... 25
25.
Male hypandrium strongly swollen in basal 1/2, with lateral denticles;
1.7-2.0.Fig.
105... inspissata Collin
Male hypandrium simple; 2.0-2.5.Fig.
103... excellens Frey
26.
Face polished, entirely brilliant, rarely slightly dusted laterally on
clypeus or finely striated under antennae, epandrial lobes fused basally
... 27
At least epistome mostly dusted or dull metallic, dark coloured and weakly
shining, often punctate or granular, sometimes strongly striated ... 29
27.
Halter dark, blackish or brown; apical section of M1+2 slightly
but distinctly curved; face shining deep blue; 2.4-3.5. Fig. 94 ... ambigua
(Zetterstedt)
Halter yellow, apical section of M1+2 strongly curved; face
shining green ... 28
28.
2 strong and 2 fine whitish proepistrernal setae; cercus with lobe and
bladelike seta apically; hypandrium simple; 2.6-3.0. Fig. 114 ... parenti
Stackelberg
4 strong black proepisternal setae; male cercus simple, with simple setae;
hypandrium with tooth-like lateral lobes; 3.0-3.5. Figs. 90, 106 ... melancholica
Lundbeck
29.
Epandrial lobes fused, forming long process bearing 2 setae at its apex;
hypandrium narrow, gradually tapering; distal part of CuA1 approximately
as long as m-cu ... 30
Epandrial lobes greatly reduced, more or less separated; hypandrium subrectangular,
usually swollen subapically (ventral view); distal part of CuA1
usually more than 1.5 times longer than m-cu (except for M. cuspidata)
... 32
30.
Halter pale yellow, lower postoculars white, 1 or 2 epandrial setae usually
plumose, 2.0-2.7. Fig.
93, 124 ... veles Loew
Halter dark, lower postoculars usually dark ... 31
31.
2-3 brown proepisternal setae; lower postoculars yellow to brownish; 1
or 2 epandrial setae usually plumose; 1.8-2.5.Fig.
107 ... infumata Loew
3-6 strong black proepisternal setae; lower postoculars black; epandrial
setae simple; 3.0-3.5. Fig. 123 ... vagans Becker
32.
Halter blackish-brown ... 33
Halter yellow, sometimes brownish-yellow in places ... 34
33.
Lower postocular and proepisternal setae black; distal part of CuA1
1.9 times longer than m-cu; 1.9-2.3.Fig.
121 ... tristis (Zetterstedt)
Lower postocular and proepisternal setae yellow; distal part of CuA1
1.3 times longer than m-cu; 2.1-2.3. Fig. 129 ... cuspidata Collin
34.
Lower postoculars black brown ... 35
Lower postoculars yellow ... 37
35.
Distal part of CuA1 1.5 times longer than m-cu; 2.5-2.8.Fig.
112 ... pseudoapicalis Thuneberg
Distal part of CuA1 at least 2 times longer than m-cu
... 36
36.
2 proepisternal setae; 2.4-2.8.Fig.
95 ... abstrusa Thuneberg
3-4 proepisternal setae; 2.2-2.6.Fig.
96 ... acanthura Negrobov & Thuneberg
37.
Epistome matt, densely grey pollinose; hypandrium widest in middle (ventral
view); 2.4-2.5 ... glauca Loew
Epistome shining at least below middle ... 38
38.
Tibiae and basitarsi yellow-brown; epandrium elongated, 3 times longer
than high, with elongated appendages; dorsal lobe of surstylus higher than
ventral lobe (lateral view); cercus with 2 long and thin apical and subapical
flattened setae; 2.6.Fig.
101... gracilicauda Parent
Legs black with yellow knees, at most tibiae brown; epandrium not more
than 2.5 times longer than high; dorsal lobe of surstylus thin; cercus
with only apical flattened seta long ... 39
39.
Mid femur with short anteroventral bristles, sometimes longer ones at tip;
hypandrium thin to apex (ventral view); 2.1-2.5.Fig.
97 ... apicalis (Zetterstedt)
Mid femur with rather long anteroventral bristles, the longest more than
half as long as femur deep; hypandrium widened in distal 1/3 or 1/2 ...
40
40.
Abdomen pale-haired; hypandrium with rhomboid widening in distal 1/3; 2.1-2.7.
Fig. 131 ... jugalis Collin
Abdomen dark-haired; hypandrium with ovoid widening in distal 1/3 or 1/2...
41
41.
Hind femur with short and inconspicuous anteroventral bristles; hypandrium
widened in distal 1/2; 2.2-2.7. Fig. 104 ... impigra Collin
Hind femur with long anteroventral bristles at least at tip; hypandrium
widened in distal 1/3; 2.0-2.2.Fig.
98 ... borealis Thuneberg