KEYS TO SWEDISH GENERA AND SPECIES OF DOLICHOPODIDAE
by
I.Ya. Grichanov
3.
Face black, sometimes seems to be whitish or greyish from lateral view
... 4
Face silvery white ... 9
4.
Cercus bifurcated ... 5
Cercus simple, long and narrow ... 8
5.
Mid coxa without ventral spine, with several black setae only; femora black;
surstylus acicular; 3.5-4.5. Fig. 168 ... nasutum (Fallιn)
Mid coxa with ventral setae forming spine ... 6
6.
Fore basitarsus longer than rest tarsomeres combined, with several long
setae at apex; legs mostly black; surstylus narrow, pointed at apex; 4.5-6.0.
Fig. 177... commune (Meigen)
Fore basitarsus shorter than rest tarsomeres combined ... 7
7.
Fore and mid tibia dark; fore basitarsus straight, without strong setae;
fore femur with black hairs; surstylus long and narrow, with short basodorsal
projection; 4.5-5.6. Fig. 162...
glaciale
(Ringdahl)
Fore and mid tibia yellow; fore basitarsus curved, with row of strong setae;
fore femur with row of very strong black setae; cercus short and broad;
surstylus narrow, pointed at apex; 4.5-4.9.Fig.
170 ... pectinatum (Loew)
8.
Hind tibia strongly thickened at apex, whitish-yellow in basal half, black
in distal half; fore tarsus simple; surstylus broad, triangular; 3.7-4.3.
Fig. 160 ... fascipes (Meigen)
Hind tibia not thickened or slightly thickened; 2nd segment
of fore tarsus flattened at base, slightly thickened at apex; surstylus
bladelike, long, with strong seta at apex; 4.7-5.3. Fig. 167 ... nigribarbatum
(Becker)
9.
5th segment of mid tarsus strongly widened ... 10
5th segment of mid tarsus weakly widened or simple ... 11
10.
4th segment of mid tarsus not widened; 5th segment
of same tarsus widened and flattened; cercus triangular, moderately long;
surstylus baculiform, curved; 4.4-5.1. Fig. 154 ... confine Zetterstedt
4th and 5th segments of mid tarsus widened; cercus
bifurcated at middle; surstylus narrow; 4.4-5.2. Fig. 153 ... crassipes
(Meigen)
11.
Mid coxa with ventral setae forming spine ... 12
Mid coxa without spine ... 17
12.
Mid coxa with ventral spine of light setae; fore basitarsus widened; mid
femur yellow; cercus foliaceous, with long hairs; surstylus baculiform;
4.8-5.7. Fig. 152 ... basale Loew
Mid coxa with ventral spine of dark setae ... 13
13.
Fore basitarsus simple, usually slightly longer than 2nd tarsomere
... 14
Fore basitarsus thickened, usually 1.5 times longer than 2nd
tarsomere ... 15
14.
Postpedicel 3.5 times longer than high at base and longer than stylus;
cercus elongate-triangular, reddish-yellow; surstylus spoon-like at apex,
with apical setae; 3.1-4.4. Fig. 164 ... laticorne (Fallιn)
Postpedicel no more than 3 times longer than high at base, distinctly shorter
than stylus; cercus bifurcated; surstylus narrow, slightly widened in distal
half; 3-3.4. Fig. 173 ... rivale (Loew)
15.
Cercus bifurcated; surstylus acicular; femora yellow; 4.3-4.7. Fig. 161
... holmgreni
(Mik)
Cercus simple ... 16
16.
Femora mostly black; stylus slightly thickened at apex; cercus long and
narrow, bandlike, with apical seta; surstylus pointed at apex; 4.6-5.4.
Fig. 169 ... patulum
(Raddatz)
Femora reddish-yellow; cercus long, gradually narrowing apicad; surstylus
moderately long, baculiform; 5.6-6.9. Fig. 157 ... elegantulum (Meigen)
17.
Fore femur with ventral row of strong setae, half as long as diameter of
femur; fore basitarsus with short erect hairs; cercus short, triangular,
with broad straight distal margin; surstylus lanceolate; 3.5-4.8. Fig.
155 ... discolor
Zetterstedt
Fore femur with ventral hairs only, without strong setae ... 18
18.
Cercus trilobate; surstylus narrowing at middle, with basodorsal projection;
femora mostly dark; 4.4-5.0. Fig. 175...
tridactylum
(Frey)
Cercus simple ... 19
19.
Cercus longer than epandrium; femora mostly dark; fore basitarsus thickened
at apex; hind basitarsus with short dorsal spine; 4.5-5.5 ... gravipes
Haliday
Cercus shorter than epandrium ... 20
20.
Cercus broad, spearlike; surstylus baculiform; femora mostly yellow; 4.3-5.5.
Fig. 172 ... riparium (Meigen)
Cercus narrower than surstylus, with bunch of long setae at apex; surstylus
curved, with setae at apex; femora mostly black; 4.1-5.4. Fig. 171 ...
penicillatum
Loew
21.
Scape higher than postpedicel; postpedicel long, thin, triquetrous; cercus
long and broad; surstylus long and narrow, simple; 4.8-5.3. Fig. 165 ...
longicorne
(Fallιn)
Postpedicel higher than scape, flattened laterally ... 22
22.
Fore basitarsus with ventral comb of strong setae, half as long as diameter
of tarsomere; cercus long and narrow, broad at base; surstylus short; 3.8-4.8.
Fig. 178 ... micans (Meigen)
Fore basitarsus without comb of strong setae ... 23
23.
Frons densely white or grey pollinose ... 24
Frons metallic, without pollen ... 27
24.
Postpedicel 2 times longer than high at base; cercus simple; surstylus
widening distad, with distal emargination; 2.8. Fig. 176 ... viklundi
Grichanov
Postpedicel 5-7 times longer than high; cercus bilobate; surstylus without
distal emargination ... 25
25.
Four pairs of dorsocentral setae; femora partly dark; postpedicel 6 times
longer than high; cercus with short and broad outer branch; surstylus securiform;
2.3-2.4. Fig. 149 ... albomaculatum Becker
Five pairs of dorsocentral setae; femora yellow ... 26
26.
Postpedicel 5 times longer than high; cercus with narrow branches; surstylus
widened at middle; 2.4-2.7. Fig. 158 ... fissum Loew
Postpedicel 6-7 times longer than high; cercus with broad branches; surstylus
with small inner projection; 2.0-2.3. Fig. 148 ... albifrons Zetterstedt
27.
Abdomen yellow laterally at base; cercus short, triangular; 2.0-2.5. Fig.
159 ... fasciatum (Meigen)
Abdomen entirely dark, usually metallic green ... 28
28.
Hind coxa with light external seta ... fissum Loew
Hind coxa with dark external seta ... 29
29.
Cercus elongate-triangular, with 1 long seta at apex; 2.5-3.3. Fig. 166
... monotrichum
Loew
Cercus without long seta at apex ... 30
30.
Surstylus with dense bunch of long setae at apex ... 31
Surstylus without bunch of long setae at apex ... 32
31.
Cercus long, bandlike; 2.4-3.1. Fig. 151 ... appendiculatum Zetterstedt
Cercus short, irregularly triangular, widened at middle; 2.8-3.3...
caliginosum
Meigen
32.
Postpedicel nearly 5 times longer than high; cercus narrow; surstylus broad,
with distal comb of setae; 2.6. Fig. 174 ... umbripenne (Frey)
Postpedicel approximately 4 times longer than high ... 33
33.
Stylus 1/3 length of postpedicel; cercus elongate-triangular, longer than
surstylus, with long sparse hairs; 3.3-3.5. Fig. 150...
auctum
Loew
Stylus 2/3 length of postpedicel; cercus short, nearly equal in length
to surstylus, with short dense hairs; 2.8-3.3. Fig. 163 ... lanceolatum
Loew