LJUBLJANA, MAY 1995
©Slovenian Entomological Society, download unter www.biologiezentrum.at
Vol. 3, No. 1:25-35
CHECKLIST OF THE AQUATIC EMPIDIDAE RECORDED FROM SLOVENIA, WITH THE DESCRIPTION OF ONE NEW SPECIES
(DIPTERA)
Abstract - An annotated checklist is given of 58 spp. of aquatic dance flies, along with the statements on their distribution (UTM, 10x10 km) and on their resp. status (IUCN categories) in Slovenia. 30 spp. are reported from Slovenia for the first time, 17 spp. are endemic or considered threatened. Wiedemannia (Philolutra) pohoriana sp.n. is described and illustrated (holotype cJ: Slovenia, Pohorje Mts, Pesek, alt. 1350 m, 28-X-1989; deposited at PMSL). It is closely related to W. zwicki Wagner and W. kacanskae Horvat.
Izvleček - Seznam vodnih muh poplesovalk najdenih v Sloveniji, z opisom nove vrste (Diptera: Empididae)
V seznamu v Sloveniji najdenih 58 vrst vodnih muh poplesovalk je navedena njihova razširjenost (UTM, 10x10 km) in njihov status (kategorije IUCN). 30 vrst je prvič zabeleženih za favno Slovenije, 17 jih je endemičnih ali ogroženih. Opisana in ilustrirana je Wiedemannia (Philolutra) pohoriana sp.n. (holotip d: Slovenija, Pohorje, Pesek, 1350 m n.m., 28.X. 1989; shranjen v PMSL). Je v bližnjem sorodstvu z vrstama W. zwicki Wagner in W. kacanskae Horvat.
In spite of some recent papers devoted to the faunistics and to the descriptions of new species (Horvat, 1990a, b, 1993a, b, Horvat & Wagner, 1990, Wagner, 1981, 1984, Wagner & Horvat, 1993), the information of the aquatic Empididae in Slovenia is fragmentary.
Bogdan HORVAT Ljubljana
Introduction
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The present list is based on the examination of approximately 10.000 specimens from more than 300 localities, ascribed to 151 10x10km squares of the UTM grid (Fig. 1). One species is endangered, 3 are vulnerable, 11 are rare, and 2 are endemic. Apparently, 30 species (52 %) are new to the fauna of Slovenia.
Checklist
Clinocerinae Bergenstammia Mik, 1881
1.	Bergenstammia carniolica Horvat, 1993
UTM coordinates: VM44, VM54. IUCN: endangered species.
2.	Bergenstammia nudipes (Low, 1858)
UTM coordinates: VM05, VM44, VM54. IUCN: vulnerable species.
Clinocera Meigen, 1803 Subgenus Clinocera Meigen, 1803
3.	Clinocera (Clinocera) appendiculata (Zetterstedt, 1838) UTM coordinates: VM05, VM54. New to the fauna of Slovenia.
4.	Clinocera (Clinocera) nigra Meigen, 1804
UTM coordinates: VM05, VM24, VM20, VM32, VL18, VL75, VL74, WL07.
5.	Clinocera (Clinocera) schremmeri (Vaillant, 1964)
UTM coordinates: UM94, VM05, VM04, VM03, VM14, VM24, VM54, VM83. New to the fauna of Slovenia.
Subgenus Hydrodromia Macquart, 1835
6.	Clinocera (Hydrodromia) stagnalis (Haliday, 1833)
UTM coordinates: UM93, VM24, VL04, VL14, VL13, VL26, VL35, VL44, VL65, VL74, VL85, VL84, VL83, WL07, WL06.
7.	Clinocera (Hydrodromia) wesmaeli (Macquart, 1835)
UTM coordinates: VM34, VM41, VM40, VM54, VM64, VM73, VM85, VM84, WM06, WM24, WM40, VL13, VL34, VL65, VL77, VL93, WL27.
Subgenus Kowarzia Mik, 1881
8.	Clinocera (Kowarzia) barbatula Mik, 1880
UTM coordinates: UM94, VM04, VM03, VM24, VM21, VM20, VM34, VM31,VM44,
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B. Horvat: Checklist of the aquatic Empididae recorded from Slovenia, with the description of one new species (Diptera)
VM54, VM50, VM71, VM70, VM92, VM91, WM20, WM32, WM30, WM42,WM41, WM52, VL15, VL13, VL24, VL39, VL35, VL49, VL48, VL43, VL66, VL75, VL74, VL93, WL09, WL05, WL27, WL38, WL37, WL48, WL47.
9.	Clinocera (Kowarzia) bipunctata (Haliday, 1833) UTM coordinates: WM42, WM41, VL13, WL07.
10.	Clinocera (Kowarzia) madicola (Vaillant, 1964) UTM coordinates: VL04, VL14, VL13, WL07.
11.	Clinocera (Kowarzia) plectrum Mik, 1880
UTM coordinates: VM05, VM04, VM24, VM34, VM32, VM31, VM44, VM41, VM54, VM64, VM74, VM72, VM70, VM85, VM84, VM80, VM95, VM94, VM92, WM06, WM24, WM20, WM34, WM30, VL39, VL75, WL27. New to the fauna of Slovenia.
12.	Clinocera (Kowarzia) tibiella Mik, 1880
UTM coordinates: UM94, UM90, VM05, VM04, VM24, VM34, VM32, VM44, VM54, VM53, VM50, VM83, VM92, WM06, WM13, WM20, VL39, VL75. New to the fauna of Slovenia.
Subgenus Phaeobalia Mik, 1881
13.	Clinocera (Phaeobalia) elongata Wagner, 1982
UTM coordinates: VM05, VM04, VM14. IUCN: rare species. New to the fauna of Slovenia.
14.	Clinocera (Phaeobalia) inermis Low, 1861 UTM coordinates: VM03, VM54, VM53, WM24.
Dolichocephala Macquart, 1823
15.	Dolichocephala bellstedti Joost, 1985
UTM coordinate: WM24. IUCN: rare species. New to the fauna of Slovenia.
16.	Dolichocephala engeli Niesiolowski, 1992
UTM coordinates: VM74, VM90, WM24, WM40, VL77, VL85. New to the fauna of Slovenia.
17.	Dolichocephala guttata (Haliday, 1833)
UTM coordinates: UM82, UM93, VM20, VM31, VM44, VM74, WM24, WM44, VL75, VL85.
18.	Dolichocephala irrorata (Fallen, 1816)
UTM coordinate: VM74. New to the fauna of Slovenia.
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19.	Dolichocephala ocellata (Costa, 1854) UTM coordinates: VL14, VL13.
Roederiodes Coquillett, 1901
20.	Roederiodes oldenbergi (Engel, 1918)
UTM coordinates: UM90, VM24, VM34, VM54, VL29, VL39, VL49, VL75, VL93. New to the fauna of Slovenia.
Wiedemannia Zetterstedt, 1838 Subgenus Wiedemannia Zetterstedt, 1838
21.	Wiedemannia (Wiedemannia) braueri (Mik, 1880)
UTM coordinates: UM82, VM01, VM00, VM10, VM30, VM40, VM93, WM40, VL09, VL19, VL25, VL44, VL53. New to the fauna of Slovenia.
22.	Wiedemannia (Wiedemannia) kroatica Wagner, 1981
UTM coordinates: VL74, VL84, VL83, VL94, VL93, WL03, WL13. IUCN:endemic species. New to the fauna of Slovenia.
23.	Wiedemannia (Wiedemannia) rhynchops (Nowicki, 1868)
UTM coordinates: UM83, UM91, UM90, VM00, VM12, VM10, VM24, VM23, VM21, VM20, VM30, VM43, VM42, VM41, VM40, VM54, VM53, VM52, VM63, VM74, VM73, VM72, VM85, VM84, VM83, VM82, VM81, VM96, VM95, VM94, VM93, VM92, VM91, WM06, WM05, WM04, WM00, WM16, WM13, WM25, WM23, WM20, WM35, WM44, VL09, VL19, VL14, VL29, VL39, VL49, VL68, VL67, VL79, VL74, VL89, VL84, WL09, WL27, WL37.
24.	Wiedemannia (Wiedemannia) tricuspidata (Bezzi, 1905) UTM coordinates: VM12, WM40, VL83, VL94, WL13.
Subgenus Chamaedipsia Mik, 1881
25.	Wiedemannia (Chamaedipsia) aequilobata Mandaron, 1964
UTM coordinates: VM14, VM24, VM63, VM72. New to the fauna of Slovenia.
26.	Wiedemannia (Chamaedipsia) alpina (Engel, 1918)
UTM coordinates: VM04, VM03, VM01, VM14, VM24. New to the fauna of Slovenia.
27.	Wiedemannia (Chamaedipsia) ariadne Wagner, 1981
UTM coordinate: VL83, WL13. IUCN: rare species. New to the fauna of Slovenia.
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B. Horvat: Checklist of the aquatic Empididae recorded from Slovenia, with the description of one new species (Diptera)
28.	Wiedemannia (Chamaedipsia) beckeri (Mik, 1889)
UTM coordinates: VM43, VM54, VM64, VM95. New to the fauna of Slovenia.
29.	Wiedemannia (Chamaedipsia) longicornis (Mik, 1887)
UTM coordinates: VM71, VM70, VM81, VM92, VM91, WM05, WM04, WM13, WM10, VL79, VL74. New to the fauna of Slovenia.
30.	Wiedemannia (Chamaedipsia) lota Haliday, 1851 UTM coordinate: VL49. New to the fauna of Slovenia.
31.	Wiedemannia (Chamaedipsia) mikiana (Bezzi, 1899)
UTM coordinates: UM94, VM03, VM34, VM44, VM54, VM64, VM63. New to the fauna of Slovenia.
32.	Wiedemannia (Chamaedipsia) thienemanni Wagner, 1982
UTM coordinates: VM32, VM44, VM54, VM64, VM74, VM72, VM96, VM95, VM94, WM06, WM24, WM20, WM30, WL27. New to the fauna of Slovenia.
Subgenus Eucelidia Mik, 1881
33. Wiedemannia (Eucelidia) zetterstedti (Fallen, 1826)
UTM coordinates: UM83, UM90, VM03, VM00, VM10, VM31, VM42, VM71, M82, VM81, VM96, VM93, VM92, VM91, WM05, WM03, WM16, WM22, WM32, M30, WM41, WM40, WM62, UL99, VL09, VL08, VL04, VL18, VL17, VL16, VL15, VL13, VL29, VL28, VL26, VL25, VL24, VL39, VL35, VL43, VL53, VL68, VL74, VL88, VL93, WL09, WL19, WL27, WL26, WL38.
Subgenus Philolutra Mik, 1881
34.	Wiedemannia (Philolutra) aquilex (Low, 1869)
UTM coordinates: UM93, VM04, VM03, VMM, VM23, VM44, VM53, VM63, VM74. New to the fauna of Slovenia.
35.	Wiedemannia (Philolutra) bohemani (Zetterstedt, 1838)
UTM coordinates: UM83, UM82, UM92, UM91, UM90, VM02, VM00, VM11, VM10, VM23, VM21, VM32, VM30, VM44, VM42, VM41, VM54, VM50, VM73, VM72, VM85, VM84, VM82, VM92, WM00, WM13, VL19, VL18, VL29, VL39, VL47, VL56, VL68, VL75, VL74, VL84, VL93, WL05. New to the fauna of Slovenia.
36.	Wiedemannia (Philolutra) fallaciosa (Low, 1873)
UTM coordinates: UM83, UM82, UM94, VM03, VM01, VM14, VM12, VM10, VM24, VM30, VM44, VM40, VM54, VM52, VM63, VM83, VM96, VM95, VM93, WM16, VL79. New to the fauna of Slovenia.
37.	Wiedemannia (Philolutra) hygrobia (Low, 1858)
UTM coordinates: UM83, UM94, UM93, VM04, VM03, VM01, VM15, VM14,
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VM12, VM24, VM23, VM34, VM32, VM44, VM43, VM42, VM54, VM53, VM64, VM63, VM74, VM73, VM72, VM85, VM84, VM83. VM95, VM94, WM06, WM16, WM14, WM13, WM25, WM24, WM34, VL75, VL74.
38.	Wiedemannia (Philolutra) pohoriana sp. n.
UTM coordinates: WM06, WM24. IUCN: endemic species. The description is added at the end of this paper.
39.	Wiedemannia (Philolutra) queyrasiana Vaillant, 1956
UTM coordinate: WL27. IUCN: rare species. New to the fauna of Slovenia.
40.	Wiedemannia (Philolutra) wachtli (Mik, 1880)
UTM coordinates: UM83, UM93, UM90, VM03, VM00, VM14, VM12, VM23, VM32, VM31, VM44, VM43, VM42, VM40, VM54, VM53, VM64, VM62, VM74, VM85, VM84, VM96, VM95, VM94, VM93, WM06, WM25, WM24, WM35, WM44, VL09, VL19, VL68, VL67, VL75, VL74, VL84, VL93, WL27, WL26. New to the fauna of Slovenia.
Subgenus Pseudowiedemannia Engel, 1918
41.	Wiedemannia (Pseudowiedemannia) armata (Engel, 1918)
UTM coordinates: UM83, UM94, UM93, VM03, VMM, VM34, VM53, VM63, VM73, VM72. New to the fauna of Slovenia.
42.	Wiedemannia (Pseudowiedemannia) lamellata (Low, 1869)
UTM coordinates: UM90, VM50, VM70, VM81. VM80, VM96, VM93, VM90, WM16, WM13, WM12, WM23, WM22, WM32, WM31, WM30, WM42, WM40, WM62, UL99, UL93, VL04, VL03, VL17, VL15, VL14, VL13, VL36, VL35, VL34, VL49, VL44, VL57, VL53, VL68, VL79, VL77, VL76, VL74, VL89, VL88, VL87, VL99, VL94, VL93, WL09, WL07, WL05, WL03, WL19, WL16, WL14, WL29, WL28, WL39, WL38, WL37, WL49, WL48, WL47.
Hemerodromiinae Chelifera Macquart, 1823
43.	Chelifera aperticauda Collin, 1927
UTM coordinate: VM74. IUCN: rare species. New to the fauna of Slovenia.
44.	Chelifera astigma Collin, 1927
UTM coordinates: WM24, WM34. IUCN: rare species.
45.	Chelifera Jlavella (Zetterstedt, 1838)
UTM coordinate: VM44. IUCN: rare species. New to the fauna of Slovenia.
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B. Horvat: Checklist of the aquatic Empididae recorded from Slovenia, with the description of one new species (Diptera)
46.	Chelifera precabunda Collin, 1961
UTM coordinates: UM82, VM23, VM92, WM11, WM24, WM44, VL99, VL93.
47.	Chelifera precatoria (Fallen, 1816)
UTM coordinates: UM90, VM44, VM74, VM82, WM14, VL04, VL03, VL14, VL13, VL76, VL99.
48.	Chelifera siveci Wagner, 1984
UTM coordinates: UM82, VM05, VL84. IUCN: rare species.
49.	Chelifera stigmatica (Schiner, 1862)
UTM coordinates: UM82, VM24, WMOO, WM13, WM11, WM41, VL04, VL13, VL34, VL43, WL47.
50.	Chelifera trapezina (Zetterstedt, 1838)
UTM coordinates: UM83, VM03, VM23, VM44, VM74, VM93, VM92, VM91, WM25, WM24, VL75, VL84.
Chelipoda Macquart, 1823
51.	Chelipoda vocatoria (Fallen, 1816)
UTM coordinates: UM90, VM74, UL99, VL29, VL84. IUCN: rare species. New to the fauna of Slovenia.
Heleodromia Haliday, 1833
52.	Heleodromia immaculata Haliday, 1833
UTM coordinates: VM44, VM64, VM90, WM15. IUCN: rare species. New to the fauna of Slovenia.
Hemerodromia Meigen, 1822
53.	Hemerodromia melangyna Collin, 1927
UTM coordinates: UL93, VL04, VL13, VL93. IUCN: vulnerable species.
54.	Hemerodromia oratoria (Fallen, 1816)
UTM coordinates: VM00, VM10, VL25. New to the fauna of Slovenia.
55.	Hemerodromia slovenica Horvat & Wagner, 1990
UTM coordinates: VM20, VL49, VL47. IUCN: rare species.
56.	Hemerodromia unilineata Zetterstedt, 1842
UTM coordinates: VM00, VM91, WM11, UL93, VL04, VL15, VL14, VL13, VL29, VL25.
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57. Hemerodromia zwicki Horvat, 1993
UTM coordinates: UL93, VL03, VL13. IUCN: vulnerable species.
Phyllodromia Zetterstedt, 1837
58. Phyllodromia melanocephala (Fabricius, 1794)
UTM coordinates: VMOO, VM10, VM21, VM92, WM11, WM31, VL09, VL15. VL77
Fig. 1. Map of Slovenia with 10x10 km UTM grid: marked are coordinates mentioned in the text.
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B. Horvat: Checklist of the aquatic Empididae recorded from Slovenia, with the description of one new species (Diptera)
Wiedemannia (Philolutra) pohoriana sp. n.
Figs. 2-3: Wiedemannia (Philolutra) pohoriana sp.n..
2) male genitalia, left lateral view, 3) inner side of the right gonostyle
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Material - Holotype male: Slovenia, Pesek, Pohorje Mts, 1350 m a.s.l., 28-X-I989, B. Horvat and I. Sivec leg. (UTM: WM24). Paratypes: 5 males, 4 females: data as for holotype; 2 males, 2 females: 13-IX-1989, B. Horvat leg., same locality; 1 male, 1 female: mating couple, 29-V-1989, B. Horvat leg., same locality; 30 males, 31 females: r. Velka, Kozji Vrh, Dravograd, 550 m a.s.l., 23-X-1991, B. Horvat and I. Sivec leg. (UTM: WM06); 5 males, 3 females: 30-IV-1991: same data; 1 male: 12-IV-1991: same data; 9 males, 6 females: 12-111-1991: same data. - The type material is preserved in 75 % alcohol and deposited in the Slovene Museum of Natural History, Ljubljana (PMSL).
Description, male: Head roundish, blackish brown, proboscis short, eyes black. 1 pair of ocellar, 2 pairs of interocular and 5-6 pairs of postocular bristles. Thorax blackish brown. Pronotum with 1 pair of pronotal bristles. Mesonotum with 5 pairs of subequal dorsocentral bristles, between them 10-11 pairs of acrostichals in two rows. 1 pair of humeral, 1 prealar, 2 intra-alar and 1 postalar bristles present. Scutellum with 1 pair of apical bristles and some short preapical bristles. Wings brown, with slightly elongate brownish stigma. Legs brownish, long and slender. Abdomen brown.
Genitalia, male, left lateral view (Fig. 2): hypandrium well-developed, aedeagus fillose. Gonocoxite almost quadrangular. Gonostyle ovoid, basally narrow, distally bipartite. Anterior part is a strait, tooth-like prolongation, posterior part is very wide and rounded. Cerci reduced, represented by small sclerites with a few bristles. Inner side of the right gonostyle and gonocoxite (Fig. 3): gonocoxite with a short secondary prominence. Gonostyle with numerous strong short spines, concentrated in its middle area.
Measurements (in mm): Body length male 3.2-4.1, female 4.0-4.9. Wing length male 3.5-4.3, female 4.3-5.1.
Affinities: The closest relatives of W pohoriana sp.n. are W zwicki Wagner, 1982 from France and Italy, and W kacanskae Horvat, 1993 from Bosnia. The structure of the appendages of both gonostyles is similar (elongate anterior and rounded posterior appendage). The new species differs from the others in having a much wider and more rounded posterior part of the dististyle.
Habitat: Part of the Prealpine region where IV. pohoriana sp.n. was found belongs to an old volcanic rock area and is very rich in running waters. River-beds are mostly dark (due to abundant organic matter and gravel or stones covered with moss), and shaded (due to rich vegetation and conifers on the river banks). We found dance flies sitting on stones just above the surface of flowing streams and among leaves or twigs in organic deposits between stones. The type localities are situated between 550 and 1350 m a.s.l.
Phenology: IV. pohoriana sp.n. was found in spring (March, April, May) and autumn (September, October), and probably has two generations in one year.
Etymology: The species is named after Pohorje, mountainous region in northeastern part of Slovenia where this aquatic dance fly is endemic.
Acknowledgement
I thank my colleague Dr. Ignac Sivec, Slovene Museum of Natural History, Ljubljana for his critical suggestions on the manuscript and friendly cooperation in numerous field investigations all over Slovenia.
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B. Horvat: Checklist of the aquatic Empididae recorded from Slovenia, with the description of one new species (Diptera)
References
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Collin J. E., 1961: Empididae. British Flies, Vol. 6, 782 pp. Cambridge University Press..
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Vaillant F., 1978: Empididae. In: lilies, J. (Ed): Limnofauna Europaea, 2. Aufl., pp. 465469. Gustav Fischer Verlag & Swets and Zeitlinger.
Wagner R, 1981: Uber einige Hemerodromiinae vom Balkan und aus der Agais (Diptera, Empididae). Spixiana, 4(3): 297-304.
Wagner R, 1982: Über einige Empididae (Clinoceratinae) aus den Alpen und aus Italien (Diptera, Empididae). Entomofauna, 3(15): 217-222.
Wagner R, 1984: Notes on Empididae (3). Description of Chelifera siveci sp.n. Aquatic Insects, 6(4): 244.
Wagner R, B. Horvat, 1993: The genus Roederiodes Coquillett, 1901 (Diptera, Empididae: Clinocerinae) in Europe, with descriptions of four new species. Bonn. zool. Beitr., 44(1-2): 33-40.
Author's address/Naslov avtorja Bogdan HORVAT Prirodoslovni muzej Slovenije Prešernova 20, p.p. 290 SLO-61001 Ljubljana, Slovenia
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