Journal of Threatened Taxa |
www.threatenedtaxa.org | 26 April 2020 | 12(5): 15651–15654
ISSN 0974-7907 (Online) | ISSN 0974-7893 (Print)
doi: https://doi.org/10.11609/jott.5692.12.5.15651-15654
#5692 | Received 09 January 2020 | Final
received 18 February 2020 | Finally accepted 04 April 2020
Eurylophella karelica Tiensuu,
1935 (Insecta: Ephemeroptera: Ephemerellidae) –
an additional species to the mayfly fauna of Ukraine and notes on distribution
of the family in the country
Alexander V. Martynov
National Museum of Natural
History, National Academy of Sciences of Ukraine, Bohdan Khmelnytsky
str., 15, 01601 Kiev, Ukraine.
martynov_av@ukr.net, centroptilum@gmail.com
Editor: K.A. Subramanian, Zoological Survey of India,
Chennai, India. Date of
publication: 26 April 2020 (online & print)
Citation: Martynov, A.V. (2020). Eurylophella karelica
Tiensuu, 1935 (Insecta:
Ephemeroptera: Ephemerellidae) – an additional
species to the mayfly fauna of Ukraine
and notes on distribution of the family in the country. Journal
of Threatened Taxa 12(5): 15651–15654. https://doi.org/10.11609/jott.5692.12.5.15651-15654
Copyright: © Martynov 2020. Creative
Commons Attribution 4.0 International License.
JoTT allows unrestricted use, reproduction,
and distribution of this article in any medium by providing adequate credit to
the author(s) and the source of publication.
Funding: IDEA WILD (some equipment used in this research)
Competing interests: The author declares
no competing interests.
Acknowledgements: Author is grateful to Dr. M.V. Franchuk (Rivnenskyi Nature
Reserve, Ukraine) and Dr. A.M. Roman (independent researcher) for the comprehensive help in the joint expeditions
within Ukrainian Polissya. Some equipment used in this research
was provided by IDEA WILD organization in 2017 and 2018.
Abstract: A rare European species, Eurylophella karelica
Tiensuu, 1935 (Ephemeroptera: Ephemerellidae)
is reported for the first time from Ukraine.
The larvae of the species were found within Ukrainian Polissya region in the Pripyat’ River basin. Species list
of family Ephemerellidae of Ukraine with notes on species
distribution within the country is given in the present contribution.
Keywords: Checklist, distribution, mayfly, Pannota, species, Ukrainian Polissya
region.
Eurylophella Tiensuu, 1935 is a
Holarctic genus encompassing 19 recent species. Most of these species inhabit the Neartcic realm, and only three of them occur within the
western Palearctic region—Eurylophella karelica Tiensuu, 1935, E.
iberica Keffermüller
& Da Terra, 1978, and E. korneyevi Martynov, Palatov & Godunko, 2015 (Martynov et al. 2015). Eurylophella
karelica is the most common and widely
distributed, the other two are rare with restricted distribution. Distribution of E. karelica extends from north to south, and falls within
the north-west of the European part of Russia, Finland, Lithuania,
Latvia, Estonia, Poland, Hungary, and Slovenia (Martynov
et al. 2015; Ozoliņš et al. 2017). This species has not yet been recorded in Belarus (Moroz & Lipinskaya
2014), but it is likely to be found in the future.
Materials and Methods
The material was collected with square hydrobiological
hand net 25cm long on each side. The
sample is stored in 90–95 % ethanol in the author’s collection in the National
Museum of Natural History, National Academy of Sciences of Ukraine (Kyiv,
Ukraine); its inventory number (IN) is Riv19Eurkar.
Toponyms and hydronyms are duplicated in Ukrainian in square
brackets.
Habitus of E. karelica
larva was photographed using a Leica Z16 APO stereomicroscope equipped with
Leica DFC450 Digital Camera in the I.I. Schmalhausen
Institute of Zoology, National Academy of Sciences of Ukraine, and was
subsequently processed with LAS Core 3.8 and Adobe® Photoshop™ CS5 software.
Material:
Five larvae of Eurylophella karelica, Ukraine, Rivne region [Рівненська область], vicinity of Osnyts’k [Осницьк]
Village, L’va [Льва] River, 51.284E, 27.145N and 51.2840E,
27.1440N (Image 1), about 145m, 22.xii.2018, leg. Martynov A.V. – IN Riv19Eurkar.
Results and Discussion
In Ukraine, E. karelica
was recorded at Polissya [Полісся] region in potamal zone of L’va [Льва] River (Image
2) that belongs to Pripyat’ [Прип’ять] River
basin. This finding is the first record
of E. karelica from Ukraine. The Pripyat’ River basin, where the species
was found, differs in the presence of a relatively large number of waterbodies,
with slightly impaired species compositions of aquatic insects, in comparison
with vast parts of lowland Ukraine.
Thus, during investigation of Ephemeroptera at the Pripyat’ River basin
in 2017–2018 several stenobiotic and rare species
were registered (Martynov 2018); some of these
species had not yet been recorded elsewhere in Ukraine.
Habitat characteristics
The section of the L’va
River, where E. karelica larvae were
collected (Image 2, 3), is situated downstream of a dam. The river has
moderate current velocity (up to 0.3m/s), but under the bridge and above the
dam rapids with strong current are present (up to 1m/s). The bottom of the river is silty, sandy (in
some places silted), and stony (under the bridge). All larvae of the species were collected from
dead aquatic vegetation (leaves, stems etc.) in small bays with silted bottom
and almost lacking flow (Image 2). The
additional parameters of waterbody in collecting sites measured during the
sampling (22.xii.2018) were: water temperature 6°C, water hardness 84ppm, pH
8.9.
The following mayflies were also collected within the
investigated section of the L’va River in winter
(22.xii.2018) and spring (22.iii.2019)—Nigrobaetis
digitatus (Bengtsson 1912), Cloeon dipterum (Linnaeus,
1761), Heptagenia sulphurea
(O.F. Müller, 1776), H. flava Rostock, 1878, Kageronia
fuscogrisea (Retzius,
1783), Leptophlebia marginata
(Linnaeus, 1767), L. vespertina (Linnaeus,
1758), Paraleptophlebia submarginata
(Stephens, 1835), Ephemera vulgata Linnaeus,
1758, and Caenis sp. The registration of 11 mayfly species in
this section of the L’va River, makes me consider it
as one of the hotspots of mayfly species diversity in Ukrainian Polissya region.
Ephemerellidae of Ukraine and their distribution within country
In the first checklist of mayflies of Ukraine, five
species of subfamily Ephemerellinae were mentioned (Godunko & Kłonowska-Olejnik
2003). Eurylophella karelica, recorded for Ukraine for the first time
herein, belongs to another subfamily – Timpanoginae. Thereby, now species list of Ephemerellidae of Ukraine consists of six species from five
genera and two subfamilies, and E. karelica is the most rare species among them.
Ephemerellinae
Serratella ignita (Poda, 1761)
Ephemerella notata Eaton, 1887
Ephemerella mucronata (Bengtsson, 1909)
Teloganopsis mesoleuca (Brauer, 1857)
Torleya major (Klapálek, 1905)
Timpanoginae
Eurylophella karelica Tiensuu, 1935 – first record for Ukraine
The Carpathian Mountains [Карпати],
Transcarpathian [Закарпатська] Lowland, and eastern Carpathian Foothills [Передкарпаття] are
the Ukrainian regions inhabited with the highest number of Ephemerellidae
taxa; a total of five species are recorded here—S. ignita,
E. notata, E. mucronata,
T. mesoleuca, and T. major (Mikulski
1935; Godunko 2000; Godunko
& Kłonowska-Olejnik 2003; Afanasyev
2006; Kovács & Godunko
2008). Such diversity is reasoned by
abundance of waterbodies with unpolluted or moderately polluted rhithral and epipotamal zones
preferred by a vast number of mayfly species.
Except for E. karelica,
also S. ignita inhabits some waterbodies of
Ukrainian Polissya.
Larvae of this last species were registered in Dnipro [Дніпро] River (Zimbalevskaya et al. 1989), Pripyat’ River (Trylis et al. 2013), and Irsha [Ірша] River
(50.759E & 29.411N) (original data).
Such small numbers of species in the region may be due to the small
number of flowing waterbodies preferred by Ephemerellidae,
pollution and habitat modifications in main part of them.
Four species of Ephemerellidae,
Serratella ignita,
Teloganopsis mesoleuca, Ephemerella notata, and E. mucronata were recorded for Dnister
[Дністер] River,
natural border of Podolia [Подільська] Upland, and eastern Carpathian Foothills (Telyuk 1982, 1992; Mikulski 1933).
Mayflies of Podolia and Volyn’
[Волинська] Uplands,
lowland, central, and southern regions of Ukraine are still poorly
investigated. Most of the data are old
and need confirmation due to significant changes and pollution levels in
waterbodies, especially in central and southern regions.
The Crimean [Кримські] Mountains was investigated and summarized in detail
(see overview in Prokopov & Godunko 2007). Only Serratella ignita was
listed by Kiseleva & Yezernitskiy
(1985) for this region, and there are no other mentions of the species for the
Crimea [Крим]. According to
Prokopov & Godunko
(2007) the presence of this species in the fauna of the region needs
confirmation.
Within physiographic regions of eastern Ukraine only
one representative of Ephemerellidae—Serratella ignita—was
registered. This species inhabits only rhithral and eupotamal zones of
streams and headwaters of rivers within most elevated parts of Donetsk [Донецька] elevated
areas, and the species is rare within it (Martynov
2014, 2016). The recorded
population of S. ignita is geographically
isolated and should be considered as glacial relicts in this territory.
It should be noted, that the diversity of Ephemerellidae in neighboring countries (Romania, Hungary,
Slovakia, Poland, and European part of Russian Federation) does not exceed
diversity of the family within Ukraine.
The territory of Moldova is poorly investigated; two species of the
family were recorded for Belarus only.
Therefore, the Ephemerellidae species list
given above should be considered as complete, and no other species of the
family are expected to be registered in Ukraine in the near future.
For
figure & image - - click here
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