PREIMAGINAL STAGES OF COENAGRION PUELLA L. 1758 (ODONATA)
Abstract
Abstract. Aim. Ages and stages of dragonfly larvae Coenagrion puella L., 1758 with a wide area of distribution throughout Russia were determined in the laboratory. Morphological and morphometric characteristics of larvae instars are described.
Location. Zoological laboratory of Kabardino-Balkarian State University (Russia).
Methods. Common methods of entomological research were used. In experimental conditions, the development stage (F) of 260 ex. of Coenagrion puella were studied. Eggs of Coenagrion puella were taken from natural reservoirs and incubated at 22–24 °C. Larvae were fed once a day by Cladocera, Copepoda, Ostracoda, Chironomidae, Oligochaeta.
Results and conclusions. Larvae of Coenagrion puella L., 1758 are hatched from eggs after 24–26 days at the temperature 22–24 °C. Time diapason between exuviations is increased with age of larvae: 1–5 stages exuviate by 3–4 days, 6–7 stages by 5–6 days, 8–9 by 6–18 days, 10th by 9–12 days. Morphometric parameters of the larvae are changed with each molting. Main morphological changes indicate a stages of development and are due with change of mask (including its distal margin), lateral lobe, external lamellae (gill plates), antennae and tarsi. The results can be used in ecological monitoring, micropopulation studies. These data can help to determine the variability of dragonflies in mountain ecosystems.
About the Authors
L. Sh. Amhaeva
Chechen State University
Russian Federation
Russian Federation
S. G. Kozminov
Kabardino-Balkarian State University H.M. Berbekov
Russian Federation
Russian Federation
H. A. Ketenchiev
Kabardino-Balkarian State University H.M. Berbekov
Russian Federation
Russian Federation
References
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Review
For citations:
Amhaeva L.Sh., Kozminov S.G., Ketenchiev H.A. PREIMAGINAL STAGES OF COENAGRION PUELLA L. 1758 (ODONATA). South of Russia: ecology, development. 2013;8(4):40-45. (In Russ.)
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