Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae)
The male subimago and female imago of Electrogena braaschi (Sowa, 1984) from the central and southern parts of the Crimean Peninsula are described and illustrated. Complementary description of male imago, female subimago and egg is given. Data on the distribution and ecology of the species are provi...
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Інститут зоології ім. І.І. Шмальгаузена НАН України
2002
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| Zitieren: | Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) / R.J. Godunko, G.A. Prokopov, M. Kłonowska-Olejnik // Вестник зоологии. — 2002. — Т. 36, № 5. — С. 73–76. — Бібліогр.: 6 назв. — англ. |
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irk-123456789-649142014-06-22T03:02:12Z Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) Godunko, R.J. Prokopov, G.A. Kłonowska-Olejnik, M. Краткие сообщения The male subimago and female imago of Electrogena braaschi (Sowa, 1984) from the central and southern parts of the Crimean Peninsula are described and illustrated. Complementary description of male imago, female subimago and egg is given. Data on the distribution and ecology of the species are provided. Описаны и изображены субимаго самца и имаго самки вида Electrogena braaschi (Sowa, 1984) из центральной и южной частей Крыма. Приводится дополнительное описание имаго самца, субимаго самки и яйца. Представлены сведения по распространению и экологии вида. 2002 Article Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) / R.J. Godunko, G.A. Prokopov, M. Kłonowska-Olejnik // Вестник зоологии. — 2002. — Т. 36, № 5. — С. 73–76. — Бібліогр.: 6 назв. — англ. 0084-5604 http://dspace.nbuv.gov.ua/handle/123456789/64914 595.734 en Вестник зоологии Інститут зоології ім. І.І. Шмальгаузена НАН України |
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Краткие сообщения Краткие сообщения |
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Краткие сообщения Краткие сообщения Godunko, R.J. Prokopov, G.A. Kłonowska-Olejnik, M. Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) Вестник зоологии |
| description |
The male subimago and female imago of Electrogena braaschi (Sowa, 1984) from the central and southern parts of the Crimean Peninsula are described and illustrated. Complementary description of male imago, female subimago and egg is given. Data on the distribution and ecology of the species are provided. |
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Article |
| author |
Godunko, R.J. Prokopov, G.A. Kłonowska-Olejnik, M. |
| author_facet |
Godunko, R.J. Prokopov, G.A. Kłonowska-Olejnik, M. |
| author_sort |
Godunko, R.J. |
| title |
Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) |
| title_short |
Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) |
| title_full |
Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) |
| title_fullStr |
Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) |
| title_full_unstemmed |
Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) |
| title_sort |
complementary description of the winged stages of electrogena braaschi (ephemeroptera, heptageniidae) |
| publisher |
Інститут зоології ім. І.І. Шмальгаузена НАН України |
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2002 |
| topic_facet |
Краткие сообщения |
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http://dspace.nbuv.gov.ua/handle/123456789/64914 |
| citation_txt |
Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptageniidae) / R.J. Godunko, G.A. Prokopov, M. Kłonowska-Olejnik // Вестник зоологии. — 2002. — Т. 36, № 5. — С. 73–76. — Бібліогр.: 6 назв. — англ. |
| series |
Вестник зоологии |
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AT godunkorj complementarydescriptionofthewingedstagesofelectrogenabraaschiephemeropteraheptageniidae AT prokopovga complementarydescriptionofthewingedstagesofelectrogenabraaschiephemeropteraheptageniidae AT kłonowskaolejnikm complementarydescriptionofthewingedstagesofelectrogenabraaschiephemeropteraheptageniidae |
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2025-07-05T15:28:11Z |
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2025-07-05T15:28:11Z |
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1836821294181515264 |
| fulltext |
Vestnik zoologii, 36(5): 73—76, 2002
© R. J. Godunko, G. A. Prokopov, M. Kłonowska-Olejnik, 2002
UDC 595.734
COMPLEMENTARY DESCRIPTION
OF THE WINGED STAGES OF ELECTROGENA BRAASCHI
(EPHEMEROPTERA, HEPTAGENIIDAE)
R. J. Godunko 1, G. A. Prokopov 2, M. Kłonowska-Olejnik 3
1 State Museum of Natural History, vul. Teatral’na, 18, L’viv, 79008 Ukraine
2 Tavrychny National University V. I. Vernads’kogo, vul. Yaltins’ka, 4, Simferopol’, 95007 Ukraine
3 Department of Hydrobiology, Institute of Environmental Sciences, Jagiellonian University, Gronostajowa, 3,
Kraków, 30-387 Poland
Accepted 14 September 1999
Complementary Description of the Winged Stages of Electrogena braaschi (Ephemeroptera, Heptagenii-
dae). Godunko R. J., Prokopov G. A., Kłonowska-Olejnik M. – The male subimago and female imago
of Electrogena braaschi (Sowa, 1984) from the central and southern parts of the Crimean Peninsula are
described and illustrated. Complementary description of male imago, female subimago and egg is
given. Data on the distribution and ecology of the species are provided.
Key wo rd s: Ephemeroptera, Heptageniidae, Electrogena, Ukraine, Crimea.
Äîïîëíèòåëüíîå îïèñàíèå êðûëàòûõ ñòàäèé Electrogena braaschi (Ephemeroptera, Heptageniidae).
Ãîäóíüêî Ð. È., Ïðîêîïîâ Ã. À., Êëîíîâñêà-Îëåéíèê Ì. – Îïèñàíû è èçîáðàæåíû ñóáèìàãî
ñàìöà è èìàãî ñàìêè âèäà Electrogena braaschi (Sowa, 1984) èç öåíòðàëüíîé è þæíîé ÷àñòåé
Êðûìà. Ïðèâîäèòñÿ äîïîëíèòåëüíîå îïèñàíèå èìàãî ñàìöà, ñóáèìàãî ñàìêè è ÿéöà. Ïðåäñòàâ-
ëåíû ñâåäåíèÿ ïî ðàñïðîñòðàíåíèþ è ýêîëîãèè âèäà.
Êëþ÷åâûå ñ ëîâà: Ephemeroptera, Heptageniidae, Electrogena, Óêðàèíà, Êðûì.
Introduction
Sowa (1984) originally described Ecdyonurus braaschi Sowa and considered this species to belong to
the lateralis group. From morphological peculiarities of its larval and adult stages this species must be trans-
ferred to the genus Electrogena Zurwerra & Tomka, 1985. The type series was collected by Dietrich Braasch
in the upper part of Bel’bek (in the original description “Beljbek”) stream, sources of which are situated on
the northern slopes of A¿petryns’ka Ya¿la (in the original description “Aipetričeskaya Yalta”) in region of
height-climatic subalpine belt, which is typical for the Crimean mountains. During last years E. braaschi was
considered as a component of the zoobenthos of Crimean running waters. Kiseleva (1993, 1997) mentioned
this species as “Ecdyonurus gr. lateralis” and “Ecdyonurus lateralis” from the pre-mountain part of the Cri-
mean Peninsula. The data on ecology of this endemic species were absent hitherto. Based on the material
from rivers of central and southern parts of the Crimean Peninsula, the supplemental diagnosis of larval
stages was given by Godunko (2000).
The male subimago and female imago stayed unknown. In this paper the distribution of all winged
stages is given based on the material from streams of central and southern parts of the Crimean Peninsula.
The main collection site was in upper part of Khosta Bash River flowing on the southern slope of Aypetry
Yayla close to its type locality.
Electrogena braaschi (Sowa, 1984)
Ecdyonurus braaschi Sowa, 1984: 182; Ecdyonurus gr. lateralis: Kiseleva, 1993: 163; Ecdyonurus later-
alis: Kiseleva, 1997: 40; Electrogena braaschi (Sowa): Godunko, 2000: 64.
Ma t e r i a l . { subimago, } subimago, Crimea, upper part of Kacha River, Crimean Reserve, 28.05.1999;
4 { imago, 3 } imago with larval and subimaginal skin, 4 { subimago, 11 } subimago, Crimea, upper part of
Khosta-Bash River, near preface Miskhor (southern Yalta town), Yalta Mountain Forest Reserve, 31.05.1999;
3 imago, 3 subimago, 2 } imago, Crimea, upper part of Kyzyl-Koba River, near Pereval’ne vil., 2.06.1999;
{ subimago, 4 } subimago, the Crimea, upper part of Burul’cha river, 3.05.1999 (Godunko, Prokopov);
{ imago, 6 } imago, Crimea, upper part of Auzun-Uzen’ River. 12.06.1999 (Prokopov).
R. J. Godunko, G. A. Prokopov, M. Kłonowska-Olejnik 74
Ðèñ. 1. Electrogena braaschi, { èìàãî (1—3),
{ ñóáèìàãî (4), } èìàãî (5) è ÿéöî (6—11):
1 – ñòèëèãåð è ôðàãìåíò ôîðöåïñîâ, âåí-
òðàëüíî; 2 – ëîïàñòè ïåíèñà, âåíòðàëüíî; 3 –
ëîïàñòè ïåíèñà, äîðñàëüíî; 4 – ãåíèòàëèè,
âåíòðàëüíî; 5 – çàäíÿÿ ÷àñòü áðþøêà, âåí-
òðàëüíî; 6 – îáùèé âèä ÿéöà (ìàñøòàá
10 ìêì); 7 – ïîâåðõíîñòü õîðèîíà (ìàñøòàá
5 ìêì); 8 – ïîâåðõíîñòü õîðèîíà ñ ìàëûìè
øèøêîîáðàçíûìè ñïèðàëüíî çàêðó÷åííûìè
íèòÿìè è áóãîðêàìè (çàìåòåí ó÷àñòîê ìàòðèê-
ñà) (ìàñøòàá 1 ìêì); 9 – ïîâåðõíîñòü õîðèî-
íà ñ ìàëûìè øèøêîîáðàçíûìè ñïèðàëüíî
çàêðó÷åííûìè íèòÿìè è áóãîðêàìè, ëàòåðàëü-
íî (ìàñøòàá 5 ìêì); 10 – ìèêðîïèëå (ìàñ-
øòàá 5 ìêì); 11 – ïîâåðõíîñòü õîðèîíà ñ
ìàëûìè øèøêîîáðàçíûìè ñïèðàëüíî çàêðó-
÷åííûìè íèòÿìè è áóãîðêàìè, ëàòåðàëüíî
(ìàñøòàá 5 ìêì).
Fig. 1. Electrogena braaschi, { imago (1—3),
{ subimago (4) and } imago (5) and egg (6—11):
1 – styliger and fragment of forceps, ventral view;
2 – lobe of penis, ventral view; 3 – lobe of
penis, dorsal view; 4 – genitalia, ventral view;
5 – posterior part of abdomen, ventral view; 6 –
general view of egg (scale bar 10 μm); 7 – chori-
onic surface (scale bar 5 μm); 8 – chorionic
surface with small KCT and tubercles (ground
matrix visible) (scale bar 1 μm); 9 – chorionic
surface with KCT and tubercles, lateral view
(scale bar 5 μm); 10 – micropyle (scale bar
5 μm); 11 – chorionic surface with KCT and
tubercles, lateral view (scale bar 5 μm).
Complementary Description of Electrogena braaschi … 75
Descr ipt ion. Male imago (in alcohol, freshly collected material). Body length
8.0—11.0 mm; fore wing 8.0—11.0 mm; cerci 23.0—26.0 mm. Eyes large, globular, dark
without band. Head light brown. Thorax dark brown, pleurae yellowish-white. Fore
wings transparent, vitreous, pterostigmatic area distinctly lactescent. Venation dark,
cross veins simple. Costa and subcosta light brown basally. Femora, tibiae and tarsi of
fore legs dark brown. Middle and hind legs light, almost hyaline, femora and tibiae
pale yellowish-brown, tarsi rather dark, slightly brown. Terga I—IX light brown or yel-
lowish with two reddish-brown connected spots near fore corners or with a stripe wid-
ened to lateral margins. Sterna of abdomen dark brown with hardly visible violet gan-
glia. Cerci dark brown. Styliger dark brown. Its lateral lobes extend up to base of first
forceps article and separated from each other by a distinct median connexity (fig. 1,
1). Penis lobes light brown, asymmetrical with outer and posterior rounded margins.
Interior margin relatively straight. Lobes close to each other, slightly truncate at end.
Space between them distinctly V-shaped (fig. 1, 2). Penis widest basally, its stem rela-
tively long. Titillators simple, without teeth. Dorsal side of penis lobes with a basal
protuberance bearing 2—4 large and several small denticles (fig. 1, 3).
Male subimago. Body length 8.0—9.5 mm; fore wing 10.0—11.0 mm; cerci 9.0—
13.0 mm. Eyes dark, without band. Fore wings pale, greyish with dark grey venation.
Colour of abdomen terga and legs similar to male imago. Sterna light brown with well
visible violet nervous ganglia. Styliger plate markedly protruding, lateral lobes large and
rounded. Cerci light brown. Penis lobes rounded apically. Space between lobes V-
shaped (fig. 1, 4). Basal protuberance on dorsal side with well visible denticles.
Female imago. Body length 10.0—14.0 mm; fore wing 11.0—15.0 mm; cerci 11.5—
16.0 mm. Body colour similar to male imago and slightly pale. Eyes dark. Fore wings
transparent with well visible dark brown longitudinal and cross veins. Pterostigmatic
area lactescent with simple cross veins. Colour legs like to male imago. Sterna of ab-
domen with well visible violet nervous ganglia. Posterior abdominal segments in ventral
view as in figure 1, 5. Subgenital plate with posterior margin slightly rounded. Apical
outline of subanal plate similar to subgenital plate outline. Cerci yellow-brownish.
Female subimago. Body length 10.0—12.5 mm; fore wing 11.5—14.0 mm; cerci
9.0—12.5 mm. Colour of body and eyes similar to that of male subimago. Sterna IX—
X yellowish, paler than other. Cerci yellowish, dark brown at their base.
Egg oval. Size: length 138—143 μm; width: 100—107 μm (fig. 1, 6). Chorionic
surface rugose, with numerous tubercles and attachment structures (fig. 1, 7). Tuber-
cles are small and round (diameter 1—1.4 μm); distance between adjacent tubercles
ranging from 0.4 to 1.8 μm (fig. 1, 9, 10). Chorionic surface and tubercles covered by
very delicate granular ground matrix (visible at high magnification) (fig. 1, 8, 10). At-
tachment structures, characterised by knob-terminated coiled threads (KCT) (Koss,
Edmunds, 1974) are only one kind (fig. 1, 8, 9, 11). They are small (diameter 1.2—
1.6 μm) and rather sparsely scattered over egg surface; distance between KCT ranging
from 3—6 μm (fig. 1, 7). 3—6 micropyles are found in subequatorial area (fig. 1, 10).
Sperm guide is ovoid, 6—8 μm long and 5.5—6.5 μm width (micropylar opening situ-
ated at side). Micropylar rim thick, with tubercles like those from chorion surface.
E. braaschi eggs most resemble those of Electrogena grandiae (Belfiore): (chorion
rugose with tubercles and KCT attachment structures which are more or less of same
size and are equally distributed over chorion surface) (Gaino et al., 1987).
Dis t r ibut ion and ecology. So far, E. braaschi is known only from mountain
area of Crimean Peninsula. Considering relative isolation of Crimean Mountains from
other eastern, southern and central European mountain systems and significant part of
endemic species among other aquatic insects, we suppose that E. braaschi is a Crimean
endemic.
Larvae of E. braaschi represent the main component in both number and biomass
of Ephemeroptera, as our study on the water flows show. Larvae were found along
R. J. Godunko, G. A. Prokopov, M. Kłonowska-Olejnik 76
whole profile of the stream, both in its rapid parts and sections with slow flow. This
species inhabits large and medium stones on coarse gravel in the mid- and little
streams (current velocity 1—1.5 m/s). Specimens occurred at the altitude of 300 to
800 m. a. s. l. Summer temperature in the examined water flows was 8—15°C. Peculi-
arities of life cycle of this species are not known.
The SEM photographs of the eggs were made on a scanning electron microscope JEOL JSM 5410 at
the Department of Cytology and Hydrology of the Jagiellonian University, Kraków. We are indebted to
Mrs. J. Faber for technical assistance.
Êèñåëåâà Ã. À. Àìôèáèîòè÷åñêèå íàñåêîìûå â âîäíûõ ýêîñèñòåìàõ ìàëûõ ðåê ïðåäãîðíîé çîíû
Êðûìà // Óñïåõè ýíòîìîëîãèè â ÑÑÑÐ. – 1993. – 1. – Ñ. 162—163.
Êèñåëåâà Ã. À. Àìôèáèîòè÷åñêèå íàñåêîìûå // Àïîñòîëîâ Ë. Ã. è äð. Íàñåêîìûå. Áèîðàçíîîáðàçèå
Êðûìà: îöåíêà è ïîòðåáíîñòè ñîõðàíåíèÿ. – Washington, 1997. – C. 40—41.
Gaino E., Belfiore C., Mazzini M. Zootaxonomic investigation of the Italian species of the genus Electrogena
(Ephemeroptera, Heptageniidae) // Boll. Zool. – 1987. – 54. – Ð. 169—175.
Godunko R. J. Little-known species of the Genera Rhithrogena and Electrogena (Ephemeroptera, Heptage-
niidae) // Vestn. zoologii. – 2000. – Suppl. N 14. – P. 60—66.
Koss R. W., Edmunds G. F. Ephemeroptera eggs and their contribution to the phylogenetic studies of the
order // Zool. J. Linn. Soc. – 1974. – 55. – Ð. 267—349.
Sowa R. Two new species of Ecdyonurus Eaton of lateralis (Curt.) group (Ephemeropetra, Heptageniidae)
from the Crimea and Western Caucasus // Acta hydrobiol. – 1984. – 26 (25—26). – P. 181—188.
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