Of the Javorníky Mts. (Czech Republic)
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ISSN 2336-3193 Acta Mus. Siles. Sci. Natur., 69: 141-159, 2020 DOI: 10.2478/cszma-2020-0010 Published: online 1 July 2020, print July 2020 Trichoptera (Insecta) of the Javorníky Mts. (Czech Republic) Jiří Kroča & Petr Komzák Trichoptera (Insecta) of the Javorníky Mts. (Czech Republic). – Acta Mus. Siles. Sci. Natur. 69: 141- 159, 2020. Abstract: A total of 79 Trichoptera species (43 genera, 16 families) were found in the Javorníky Mts. (Czech Republic), including two Carpathian species, Chaetopteryx polonica Dziedzielewicz, 1889 and Potamophylax carpathicus (Dziedzielewicz, 1912). Two further species, Rhyacophila mocsaryi Klapálek, 1898 and Rhyacophila philopotamoides McLachlan, 1879, have, until recently, only been found in the Carpathian Mts. In addition, eight species that occur infrequently or only locally in the Czech Republic were found, Synagapetus moselyi (Ulmer, 1938), Hydroptila angulata Mosely, 1922, Wormaldia pulla (McLachlan, 1878), Plectrocnemia brevis McLachlan, 1871, Tinodes unicolor (Pictet, 1834), Hydropsyche fulvipes (Curtis, 1834), Beraeamyia hrabei Mayer, 1937 and Ernodes vicinus (McLachlan, 1879). Several of these species are listed in the Red List of threatened invertebrates of the Czech Republic (one as endangered, one vulnerable and seven near threatened). Keywords: Caddisflies, Invertebrate survey, faunistics, Javorníky Mts., Carpathians, Beskydy PLA, Moravia, Czech Republic Introduction Trichoptera (caddisflies), part of the temporal component of the aquatic fauna of freshwater habitats, are amongst the most species-rich of insect orders. To date, 259 species have been recorded in the Czech Republic, with 253 recently confirmed by Chvojka & Komzák (2017) and Komzák & Kroča (2018a). Sixty-five of these caddisflies are included in the Red List of threatened invertebrate species of the Czech Republic (Chvojka & Komzák 2017). Historically, records of caddisflies in the Outer Western Carpathians (Czech Republic) have been published in summary articles based on material collected in different areas throughout Czechoslovakia, or in hydrobiological studies based on larval material only (Zelinka 1950; Krkavec 1951; Hrabě et al. 1954, 1958; Sýkora 1954, 1956; Obr 1969, 1975; Sedlák 1971; Kroča 2002). More recently, research has focused more on nature conservation areas and faunistically more reliable adult specimens and some interesting new records have recently been published separately (Komzák & Chvojka 2005; Komzák et al. 2006; Chvojka et al. 2009; Komzák & Kroča 2011, 2018a, b). The first summary paper on caddisflies of the Outer Western Carpathians was published by Komzák & Chvojka (2012), based on specimens from the Bílé Karpaty Protected Landscape Area (PLA). To date, only two species have been reported from the Javorníky Mts., Rhyacophila philopotamoides (Komzák et al. 2006) and Beraeamyia hrabei (Komzák & Kroča 2018b). The aim of this work is to summarise current knowledge on the occurrence of caddisflies in this area on the basis of previously unpublished collections sampled mainly from springs, spring rivulets and the upper stretches of streams. As surveying has been insufficient over the whole territory and the whole range of available habitats (with various types of stagnant waters and the lower stretches of streams omitted), the work cannot be considered as a complete list of species from this area. 141 Study area, material and methods The Javorníky Mts. (considered as a single geomorphological unit) is situated in the north-eastern part of Moravia (Czech Republic), system Outer Western Carpathians, sub-system Moravian-Slovak Carpathians (Magura Flysch Nappe). The whole area (229 km2) is drained by the River Vsetínská Bečva (left tributaries only), the River Senice (only right tributaries from the settlement of Horní Lideč) and the Beňadín stream (Váh river basin) in the southern part. From a nature conservation point of view, all study sites (Fig. 1, Table 1) are located within the territory of the Beskydy PLA, within which the Razula site is classified as a National Nature Reservation (NNR). Most sites are located in the upper (hypocrenal - epirhitral) stretches of streams, only site Vsetínská Bečva 3 having a metarhitral character. The first collections came from the Hydrobiological inventory survey of the Razula NNR (2003). The survey was based on adult specimens only, with sweeping and light trapping used as complementary methods to standardised hydrobiological sampling. Unfortunately, the hydrobiological sampling data are no longer available and cannot be verified. Surveys at Makyta and Malá Tisová were carried out over 13 March to 27 November 2007 using Barták’s type Malaise traps. This material is supplemented by the collections of Petr Komzák from other localities in the survey area, which were monitored irregularly and by different methods (sweeping, light traps, hydrobiological sampling). All material obtained was preserved in 70% ethanol (adults) or 4% formaldehyde (larvae). Species were identified according to Malicky (2004) and Waringer & Graf (2011). Locality information is supplemented by grid references based on Zelený (1972) and Pruner & Míka (1996). The nomenclature and arrangement of higher taxonomic groups in the list of species follows Malicky (2005), with species subsequently presented in alphabetical order. Fig 1: Map of localities investigated in the Javorníky Mts. Abbreviations: The following abbreviations are used in this paper: NNR – National Nature Reserve, PLA – Protected Landscape Area (the categories and terms specified by the Czech system of legally protected natural areas), NP – National Park; HS – hydrobiological sample, LT – light traps, MT – Malaise trap, SC – sweeping and collecting; EN – en- dangered species, VU – vulnerable species, NT - near threatened (categories defined by the Red List of threatened invertebrates of the Czech Republic; Chvojka & Komzák 2017); JB – Jindřiška Bojková, JK – Jiří Kroča, MH – Michal Horsák, MS – Michal Straka, PK – Petr Komzák, TK – Tomáš Kuras, WRI – T. G. Masaryk Water Research Institute, public research institution; ♂ – male, ♂P – male pupa, ♀ – female, ♀P – female pupa, L – larva. 142 Table 1: Monitoring localities in the Javorníky Mts. Annotation: * according to Demek & Mackovčin, 2006. Elevation Coordinates No. Locality Geomorphological units * Quadrat Stream (m a.s.l.) N E 1. Razula 6676 Malá Hanzlůvka 665 - 770 49°21'42" 18°22'50" 2. Lemešná 6676 Lemešná 643 49°20'43" 18°22'29" 3. Tisňavský p. 6676 Tisňavský potok 560 49°21'54" 18°20'01" 4. Stanovnice 1. 6675 Velká Stanovnice 700 49°19'21" 18°18'45" 5. Stanovnice 2. 6675 Velká Stanovnice 630 49°19'18" 18°17'58" 6. Stanovnice 3. 6675 Velká Stanovnice 535 49°19'58" 18°15'35" 7. Malá Stanovnice Javorníky Mts 6675 Malá Stanovnice 540 49°19'45" 18°15'10" 8. Karolinka 6675 Velká Stanovnice, reservoir 525 49°20'48" 18°14'18" 9. Makyta 6775 Kychová 665 49°16'33" 18°10'45" 10. Malá Tisová 6774 Left tributary of Kychová 547 49°16'29" 18°08'39" 11. Zděchovka 6774 Zděchovka 405 49°17'44" 18°05'23" 12. Pulčínský p. 1. 6774 Left tributary of Pulčínský potok - hypocrenal 560 49°14'02" 18°04'23" 13. Pulčínský p. 2. 6774 Pulčínský potok 535 49°14'05" 18°04'18" 14. Vsetínská Bečva 1. 6676 Vsetínská Bečva 570 49°22'05" 18°21'06" Hostýnsko-Vsetínská hornatina Mts / 15. Vsetínská Bečva 2. 6675 Vsetínská Bečva 535 49°22'02" 18°18'53" Javorníky Mts 16. Vsetínská Bečva 3. 6674 Vsetínská Bečva 360 49°18'34" 18°00'36" Figs 2–3: 2 - Razula NNR (Beskydy PLA), photo by J. Kroča, 19 April 2003; 3 - Malá Tisová (Beskydy PLA), photo by J. Kroča, 14 May 2007. 143 Figs 4–9: 4 - Makyta (Beskydy PLA), photo by J. Kroča, 14 May 2007; 5 - Tisňavský stream (potok) (Beskydy PLA), photo by P. Komzák, 24 April 2008; 6 - Stanovnice 3 (Beskydy PLA), photo by P. Komzák, 23 September 2013; 7 - Malá Stanovnice (Beskydy PLA), photo by P. Komzák, 12 May 2016; 8 - Vsetínská Bečva 2 (Beskydy PLA), photo by P. Komzák, 11 May 2016; 9 - Vsetínská Bečva 3, photo by P. Komzák, 9 May 2013. 144 Results RHYACOPHILIDAE Rhyacophila fasciata Hagen, 1859 Stanovnice 1. (4), 15.vii.2009, 6 ♂, SC, PK leg., det. et coll.; Malá Stanovnice (7), 14.vii.2010, 1 ♂P; 23.ix.2013, 1 ♀P; 12.v.2016, 3 ♂ 1 ♂P 2 ♀P, all SC, PK leg., det. et coll.; Makyta (9), 14.v.–11.vi.2007, 1 ♂, MT, JK leg. et coll., PK det.; Malá Tisová (10), 11.vi.–9.vii.2007, 1 ♂; 6.viii.–5.ix.2007, 1 ♂, all MT, JK leg. et coll., PK det.; Pulčínský p. 1. (12), 21.vi.2011, 1 ♂P, SC, PK leg., det. et coll.; Pulčínský p. 2. (12), 21.vi.2011, 3 ♂ 4 ♀, SC, PK leg., det. et coll. Distribution in the Czech Carpathians: Bílé Karpaty Mts., Vizovická vrchovina Highland (both Komzák & Chvojka 2012), Moravskoslezské Beskydy Mts. (Krkavec 1951; Hrabě et al. 1954; Sýkora 1954, 1956; Kroča 2012, 2013a) and the Podbeskydská pahorkatina Upland (Kroča 2013b, 2018). Rhyacophila mocsaryi Klapálek, 1898 (NT) Vsetínská Bečva 1. (14), 24.v.2012, 1 ♀, SC, PK leg., det. et coll. Distribution in the Czech Carpathians: Moravskoslezské Beskydy Mts. (Kroča 2002, 2012, 2013a, Komzák et al. 2006) and the Podbeskydská pahorkatina Upland (Obr 1969). A record from the Bílé Karpaty Mts. (Jurajda et al. 2000) was based on larval material only and was not confirmed during a later thorough investigation (Komzák & Chvojka 2012). Species distribution in the Czech Republic is most probably restricted to the northeast Carpathian Mts. only and records of larvae from the Fryšávka stream in the Czech-Moravian Highlands (Sukop et al. 2010) cannot be considered reliable. The species occurs in the upper stretches of montane and sub-montane streams. Rhyacophila nubila (Zetterstedt, 1840) Razula (1), 7.vi.2003, 1 ♀, SC, MH leg., PK det., JK coll.; Lemešná (2), 15.vii.2009, 4 ♂ 1 ♂P, SC, PK leg., det. et coll.; Tisňavský p. (3), 23.ix.2008, 1 ♀; 15.vii.2009, 2 ♂P 2 ♀P; 24.v.2012, 13 ♂ 2 ♀, all SC, PK leg., det. et coll.; Stanovnice 3. (6), 14.vii.2010, 2 ♂; 23.ix.2013, 1 ♂P; 12.v.2016, 1 ♂P; 14.ix.2016, 1 ♀, all SC, PK leg., det.