KEYS TO SWEDISH GENERA AND SPECIES OF DOLICHOPODIDAE
by
I.Ya. Grichanov
1.
Wing with R4+5 vein curving forward, diverging from M1+2
vein; 1.75-2.0. Fig. 14(10) ... alpinus (Haliday)
–
R4+5 not curved forward and not diverging from M1+2
vein ... 2
2.
Males: hypopygium present ... 3
–
Females: hypopygium absent ... 16
3.
Legs simple, sometimes with elongated hairs on fore tarsus or hind femur
... 4
–
Some podomeres modified or bearing bunches or rows of remarkable setae,
longer than diameter of corresponding podomeres ... 6
4.
Antennal scape and pedicel yellow; face ochre-yellow; legs yellow; 1.5
... picticornis (Zetterstedt)
–
Antenna entirely black ... 5
5.
Wing bicolorate, dark in anterior half and almost transparent posteriorly;
hind femur on apical half of anterior side with row of 5 or 6 long fine
erect setiform hairs; fore tarsus covered with short accumbent hairs; 1.5-2.25
... marginatus Loew
–
Wing monochrome, slightly darkened; hind femur without long erect anterior
hairs; fore tarsus covered with long fine cilia; 1.5. Fig. 14(1)
... lumbatus Loew
6.
Fore basitarsus shortened, bearing very long band-like process covered
with long hairs; fore tibia slightly dilated; face white; antennal scape
and pedicel yellow ventrally; 2.25-2.5. Fig. 14(4) ... compeditus
Loew
–
Fore basitarsus without process ... 7
7.
Mid tibia distinctly thickened ... 8
–
Mid tibia not thickened; fore legs not modified ... 11
8.
Legs black or black-brown ... 9
–
Legs reddish-yellow, sometimes partly brown ... 10
9.
Mid tibia anterodorsally short-haired, slightly swollen in basal third
and thereafter dorsoventrally flattened; mid basitarsus slightly longer
than next segment; fore tarsus with 4th and 5th segments
enlarged; mid femur with comb-like of short strong bristles at apex beneath;
1.5-2.75. Fig. 14(2) ... pusillus (Meigen)
–
Mid tibia strongly thickened, with dorsal row of strong setae; mid basitarsus
at least 1.5 times longer than next segment, with lobe-like process at
apex; hind femur without ventral setae; 1.5 ... paradoxus (Wahlberg)
10.
Mid tibia considerably dilated and curved, anterodorsally with a row of
long bristles on apical half; fore legs bearing long hairs; 2.5-3.25. Fig.
14(3) ... scambus (Fallén)
–
Mid tibia distinctly thickened in distal half, almost straight, with several
dorsal setae in apical half; fore legs not modified; 2.0-2.75. Fig. 14(5)
... curvipes (Fallén)
11.
Mid basitarsus 1.5 times shorter than next segment ... 12
–
Mid basitarsus distinctly longer than next segment ... 13
12.
Hind femur with ventral row of black setae; face yellow brown; mid tibia
with setae; 2.0-2.75 ... curvipes (Fallén)
–
Hind femur without row of setae; face white above, brownish-yellow below;
mid femur and tibia with setae; 2.0-2.75.Figs.
13-14(6) ... loripes (Haliday)
13.
Hind basitarsus with erect hooked ventral hairs; 2.0 ... femoratus Ringdahl
–
Hind basitarsus with simple hairs ... 14
14.
Mid tibia with round ventral wart in basal third; mid femur with corresponding
ventral excavation in distal third; mid femur and tibia with setae; face
brownish yellow; 2.0. Fig. 14(7) ... articulatellus (Zetterstedt)
–
Mid tibia without wart in basal third; mid femur without corresponding
excavation; face entirely yellow ... 15
15.
Mid femur with very short ventral hairs; mid tibia with a comb-like row
of blunt-ended bristles in basal half only; 1.5. Fig. 14(8) ...
pumilio
(Zetterstedt)
–
Mid femur, ventrally along almost whole length, with a row of bristles,
some of which are more than 2/3 as long as greatest diameter of femur;
mid tibia, ventrally along almost whole length, with a comb-like row of
blunt-ended bristles; 1.25-2.0. Fig. 14(9) ... armatus (Zetterstedt)
16.
Antenna reddish yellow at base ... 17
–
Antenna entirely black ... 18
17.
Face with at least clypeus yellow; hind basitarsus only about as long as
next segment; costal vein of wing spinulose; R4+5 and M1+2
parallel; at least 4 dorsocentral setae; 1.5-2.0 ... picticornis
(Zetterstedt)
–
Face entirely greyish white; hind basitarsus longer than next segment;
costa not spinulose; R4+5 and M1+2 convergent at
apex; only 3 dorsocentral setae; about 2.25 ... compeditus Loew
18.
Legs black, at most with light knees ... 19
–
Femora and tibia mostly brownish yellow ... 20
19.
Face dark brownish yellow; wing darkened; halter dark; 1.5 ... paradoxus(Wahlberg)
–
Face grey above, brownish yellow below; wing transparent; fore coxa with
hairs and apical bristles black; 1.5-2.75 ... pusillus (Meigen)
20.
Fore coxa with hairs and bristles entirely white; wing dark in anterior
half and almost transparent posteriorly; 1.5-2.25 ... marginatus
Loew
–
Fore coxa with at least apical setae black ... 21
21.
3rd section of costa with two kinds of setulae, coarse and fine,
the coarse ones longer and more erect ... 22
–
3rd section of costa not as above, with normal setulae ... 23
22.
Face entirely white; 1.5 ... lumbatus Loew
–
Face greyish yellow above and reddish below; 2.0 ... articulatellus(Zetterstedt)
23.
Basal section of M1+2, measured from root, obviously shorter
than apical section; epistome greyish; clypeus rather pale yellow; fore
coxa usually entirely or mainly yellow; 1.25-2.0 ... armatus (Zetterstedt)
–
Basal section of M1+2subequal to apical section ... 24
24.
Face brownish yellow; usually becoming rather greyish below antennae, at
narrowest part not as wide as distance between ocellar bristles; fore coxa
usually mainly yellow; 2.5-3.25 ... scambus (Fallén)
–
Epistome whitish; clypeus brownish yellow, at narrowest part at least as
wide as distance between ocellar bristles ... 25
25.
Fore coxa yellow, darkened at base; clypeus somewhat paler yellow; 2.0-2.75
...
loripes (Haliday)
–
Fore coxa mainly or entirely dark; clypeus darker yellow; 2.0-2.75 ...
curvipes(Fallén)