Empis (Xanthempis)
Creators: name: Shamshev, Igor V.
name: Barták, Miroslav
Publisher: name: Zenodo
Year: 2019
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Empididae
Empis

description: Key to species of Xanthempis from the Mediterranean basin
1 Eyes appressed to ocellar triangle; frons narrow, on upper part at most as broad as distance between outer margins of posterior ocelli............................................................................................... 2
- Eyes separated from ocellar triangle by more or less broad space; frons broad, much broader than distance between outer margins of posterior ocelli.................................................................................. 3
2 Thorax with postpronotal lobes yellow. Epandrium lamellae spherical, strongly concave and voluminous (Daugeron 2000: 386, fig. 16) (East Mediterranean)...................................................... E. (X.) testiculata Bezzi
- Thorax with postpronotal lobes greyish to brownish. Epandrium lamellae narrow, simple (Daugeron 1997: 160, fig. 4). Female unknown (Morocco).............................................................. E. (X.) ifranensis Daugeron
3 Thorax grey or blackish brown........................................................................... 4
- Thorax extensively yellow, at least on pleura................................................................ 9
4 Thorax blackish brown, abdomen entirely brown; fore femur brown dorsally and yellow ventrally (South France)................................................................................... E. (X.) fusca Daugeron et Lefebvre
- Thorax grey, abdomen yellowish to brownish yellow; fore femur yellowish........................................ 5
5 Scutum (dorsal view) with 1 or 2 brownish vittae............................................................ 6
- Scutum (dorsal view) with 3 or 4 brownish vittae............................................................ 8
6 Scutum with 1 very narrow median vitta (Morocco)....................................... E. (X.) edithae Daugeron
- Scutum with 2 narrow vittae running along rows of dorsocentral setae............................................ 7
7 Notopleuron with 2 strong setae. Male: epandrial lamellae rounded apically (Daugeron 2000: 383, fig. 14) (south of West Palaearctic)...................................................................... E. (X.) semicinerea Loew
- Notopleuron with 3 strong setae. Male: epandrial lamellae truncate apically (Daugeron 2000: 378, fig. 7). Female unknown (South France)........................................................... E. (X.) pseudosemicinerea Daugeron
8 Scutum with 4 vittae: 2 median vittae between rows of dorsocentral setae and 2 lateral vittae between dorsocentrals and notopleuron (Spain)................................................................. E. (X.) caceresensis Daugeron
- Scutum with 3 vittae, median vitta somewhat narrower (Spain)........................ E. (X.) moncayoensis Daugeron
9 Scutum entirely yellow................................................................................ 10
- Scutum with brown to black pattern, sometimes almost entirely greyish to blackish................................ 16
10 Postsutural supra-alar seta present....................................................................... 11
- Postsutural supra-alar seta absent........................................................................ 13
11 Dorsocentral setae irregularly biserial at least on middle part of scutum, more numerous in female. Female: acrostichal setae present (Europe)...................................................................... E. (X.) lutea Meigen
- Dorsocentral setae uniserial throughout; acrostichal setae absent in both sexes.................................... 12
12 Antennae with scape and pedicel brownish; occiput with 1 blackish-brown spot on upper part. Male: phallus pointed at tip (Daugeron 2000: 377, fig. 6) (France)............................................... E. (X.) montivaga Daugeron
- Antennae with scape and pedicel yellowish; occiput with pair of subrectangular blackish spots on upper part. Male: phallus truncate at tip (Daugeron 2009: 61, fig. 1) (France)......................................... E. (X.) fagina Daugeron
13 Antennae with scape and pedicel yellowish (Spain)....................................... E. (X.) nevadensis Chvála
- Antennae black to brown (sometimes scape and pedicel slightly paler than postpedicel)............................. 14
14 Occiput uniformly yellow to reddish yellow (Italy)........................................ E. (X.) lagoensis Chvála
- Occiput largely brownish to black on upper part............................................................ 15
15 Occiput yellow on narrow strip just above neck (Europe).................................... E. (X.) concolor Verrall
- Occiput entirely blackish on upper part (Spain)........................................ E. (X.) algecirasensis Strobl
16 Scutum with dark vittae on greyish or brownish grey background, usually extensively grey to brownish grey............ 17
- Scutum with dark vittae on yellow background, usually extensively yellow....................................... 21
17 Scutum (dorsal view) with 4 blackish vittae: 2 median narrow vittae between rows of dorsocentral setae and 2 broader vittae between dorsocentrals and notopleuron (Europe).......................................... E. (X.) testacea Fabricius
- Scutum (dorsal view) with 1 or 2 brownish to blackish vittae.................................................. 18
18 Scutum (dorsal view) with 1 median vitta. Male: hypandrium with 1–4 long setae on lateral margin................... 19
- Scutum (dorsal view) with 2 vittae running along rows of dorsocentral setae. Male: hypandrium without setae on lateral margin................................................................................................... 20
19 Scutum with 1 very narrow median vitta (Morocco)....................................... E. (X.) edithae Daugeron
- Scutum with 1 broad median vitta occupying almost whole space between rows of dorsocentral setae (Morocco)........................................................................................... E. (X.) chopardi Daugeron
20 Thoracic setation very reduced, dorsocentral setae minute, postsutural supra-alar seta absent (Europe)................................................................................................... E. (X.) digramma Meigen
- Thoracic setation prominent, dorsocentral setae distinct, postsutural supra-alar seta present (Spain).... E. (X.) dispina Chvála
21 Scutum with median vitta between rows of dorsocentral setae and additional vitta or pair of spots between dorsocentrals and notopleuron......................................................................................... 22
- Scutum only with median vitta.......................................................................... 23
22 Scutum usually with pair of brownish to black spots between dorsocentrals and notopleuron. Male: hypandrium without setae on lateral margin (Daugeron 2009: 62, fig. 2) (France)................................... E. (X.) virgulata Daugeron
- Scutum with black vitta between dorsocentrals and notopleuron. Male: hypandrium with 2–4 long setae on lateral margin (Bahid et al. 2018: 121, fig. 1) (Morocco).............................. E. (X.) widanensis Bahid, Kettani et Daugeron
23 Scutal vitta broad, comprising dorsocentral setae. Abdominal setation pale....................................... 24
- Scutal vitta narrow, its width on middle part at most 1/3 of distance between rows of dorsocentrals. Abdominal setation usually black (except E. matilei)............................................................................... 25
24 Abdominal tergites with subtriangular brownish spots dorsally (except tergites 1 and 2). Male: hypandrium rounded apically (Daugeron 2000: 374, fig. 3) (France).............................................. E. (X.) hypandrialis Daugeron
- Abdominal tergites with subrectangular brownish spots dorsally forming subequally broad vitta. Male: hypandrium pointed apically (Daugeron 2000: 382, fig. 13) (South Europe).......................................... E. (X.) laeta Loew
25 Postsutural supra-alar seta present. Prothoracic spiracle yellow................................................. 26
- Postsutural supra-alar seta absent. Prothoracic spiracle brown to black........................................... 28
26 Abdomen covered with yellowish setae. Male: hypandrium bare. Female: acrostichals present (Italy)......................................................................................... E. (X.) matilei Daugeron et Charbonnel
- Abdomen covered with black setae. Male: hypandrium at least with 2 spine-like subapical setae. Female: acrostichals absent (unknown in E. siciliensis)............................................................................. 27
27 Male: hypandrium with 2 spine-like subapical setae. Female unknown (Italy [Sicily]).......... E. (X.) siciliensis Shamshev
- Male: hypandrium with numerous thin subapical setae (Turkey)............................ E. (X.) adanaensis sp. nov.
28 Occiput uniformly brownish on upper part. Male: hypandrium with 7 long setae on lateral margin (France [Corsica]).......................................................................................... E. (X.) kuntzei Becker
- Occiput with distinct rhomboid black spot on upper part. Male: hypandrium without setae on lateral margin............. 29
29 Male: epandrial lamellae concave above; phallus bent beyond middle, short apical part as stout as basal part (Chvála 1994: 162, fig. 285). Female: fore tibia covered with uniform setulae dorsally (throughout Palaearctic)..... E. (X.) stercorea Linné
- Male: epandrial lamellae convex above; phallus bent at middle, basal part with swelling, apical part as long as, but much more slender than, basal part (Chvála 1994: 163, fig. 287). Female: fore tibia, usually, with 1 or 2 small black setae dorsally (Europe).................................................................................... E. (X.) aemula Loew
description: Published as part of Shamshev, Igor V. & Barták, Miroslav, 2019, New and little-known species of Empis (Diptera: Empididae) from Bulgaria, Israel and Turkey, with keys to the Palaearctic Pachymeria and the Mediterranean Xanthempis, pp. 91-100 in Zootaxa 4555 (1) on pages 98-99, DOI: 10.11646/zootaxa.4555.1.7, http://zenodo.org/record/2624189