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Key: Key to the Asteiidae of North Western Europe and the West Palaerctic (Diptera)
Key based on Chandler (1978), Sabrosky (1956) and others mentioned below, updated.
References
Chandler, P.J., 1978. A revision of the British Asteiidae (Diptera) including two additions to the British list. - Proceedings of the British Entomological and Natural History Society 11: 23-34.
Sabrosky, C.W., 1956. Additions to the knowledge of Old World Asteiidae (Diptera). - Revue Française d'Entomologie 23: 216-243.
Last modified 12/06/2015 08:44 by Paul BeukNo of couplets: 16

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Key
1a
R1 long, ending in C well beyond Sc; posterior crossvein present . Mesopleuron with numerous fine hairs near upper margin. Alula present, margin fringed with long hairs. One pair of strong, proclinate orbital setae. Arista short pubescent. Vibrissae short and weak. One pair of dc.
Leiomyza Macquart, 1835
2
b
R1 short, ending in C a little beyond Sc . Mesopleuron bare. Alula present, margin either fringed with long hairs or not. One or two pairs of dc.
5
 
2a
Knob of halter clear yellow.
3
b
Knob of halter darkened.
4
 
3a
Dorsocentral setae in a more anterior position, placement just posterior of level of notopleural setae. Frons shining, black to dark brown with paler anterior margin.
Leiomyza scathophagina (Fallén, 1823)
 
b
Dorsocentral setae in a more posterior position, placement just anterior of level of postalar setae. Frons dull to subshining, finely pollinose up to ocellar triangle and upper orbits, black to dark brown on ocellar triangle and orbital plates, remainder yelloto pale brown.
Leiomyza curvinervis (Zetterstedt, 1838)
 
 
4a
Dc placed more anteriorly, removed from the scutellum by about their length . Orbital setae nearly as strong as vertical setae.
Leiomyza dudai Sabrosky, 1956
 
b
Dc placed more posteriorly, removed from the scutellum by much less than their length. Orbital setae relatively short and weak.
Leiomyza laevigata (Meigen, 1830)
 
 
5a
Posterior crossvein absent. Wing margin in allular region bare. One pair of strong, reclinate orbital setae.
Vibrissae present.
Asteia Meigen, 1830
6
b
Posterior crossvein located at level of tip of R1. Allula present, margin fringed with long hairs. Orbital setae short and weak.
Vibrissae present or absent.
11
 
6a
Arista absent.
Subanarista mahunkai (Papp, 1979)
 
b
Arista present.
Asteia
7
 
7a
Head more or less strongly flattened, longest axis of eye clearly nearly horizontal.
At least two species: A. [A.] ibizana (Enderlein, 1935), A. [A.] floricola Papp, 1979 and A. [A.] tunisica Papp, 1979
 
b
Head more or less globose, longest axis of eye not nearly horizontal.
8
 
8a
Mesonotum yellow with four brown stripes on anterior part. ending short before posterior dc; outer one interrupted by suture and laterally expanded before it; a narrow, lateral presutural strip extends along the lower margin of the humerus and notopleural area but pleura and scutellum are entirely yellow.
Asteia elegantula Zetterstedt
 
b
Mesonotum including humeri entirely shinging dark brown to black.
9
 
9a
Disc of scutellum shining black. Halters pale yellow; face pale yellow, without white cross band. Abdomen pale yellow, without distinct black markings.
Asteia concinna Meigen, 1830
 
b
Disc of scutellum yellow. Halters pale yellow with partially darkened knob. Face with a white crossband that is bordered dark brown to black dorsally and ventrally. Abdomen yellow with black spots or curved lateral bands.
10
 
10a
Frons largely black to dark brown, anterior margin yellow.
Asteia amoena Meigen, 1830
 
b
Frons largely yellowish to pale brown, posterior margin including ocellar triangle dark brown to blackish.
Asteia algeriensis Sabrosky, 1956
 
 
11a
Anepisternum bare. Anal cell, when tracable, never quadrate; anal vein virtually invisible. Two pairs of dorsocentral setae.
Astiosoma rufifrons Duda, 1927
 
b
Anepisternum setose. Anal vein and anal cell faint but clearly visible as crease or fold; anal cell short and quadrate. One pair of dorsocentral setae.
Phlebosotera Duda, 1927
12
 
12a
Mesonotum dull, heavily pollinose.
Phlebosotera lacteipennis Hendel, 1931
13
b
Mesonotum shinging, at most thinly pollinose.
14
 
13a
Mesonotum yellowish or reddish brown with some black to dark brown markings.
14
b
Mesonotum entirely black.
15
 
14a
One pair of vertical setae (inner vertical setae absent).
Phlebosotera mollis Duda, 1927
 
b
Two pairs of vertical setae.
Phlebosotera maeandrica Carles-Tolrá, 1998
 
 
15a
Ocellar triangle at least yellow centrally.
Phlebosotera striata Hendel, 1931
 
b
Ocellar triangle entirely dark.
16
 
16a
Mesonotum shiny though still thinly pale pollinose.
Phlebosotera longilineata Sabrosky, 1956
 
b
Mesonotum entirely shining, without pollinosity.
Phlebosotera maspalomasi Frey, 1958
 
 
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