Petrozhitskaya L.V., Mirzaeva A.G. 2019. [Bloodsucking insects of the northern part of Krasnoyarskii Krai. 2. Diversity and population dynamics of blackflies (Diptera: Simuliidae) of the south of Evenkia (Eastern Siberia)] // Euroasian Entomological Journal. Vol.18. No.3: 163–171 [in Russian, with English summary].
Institute of Systematics and Ecology of Animals, Russian Academy of Sciences, Frunze Str. 11, Novosibirsk 630091 Russia. E-mail: lusia.petr@gmail.com
doi: 10.15298/euroasentj.18.3.02
ABSTRACT. It was assessed that in the complex of bloodsucking dipterans in the south of Evenkia the relative abundance of blackflies (Simuliidae) was higher than mosquitoes (Culicidae). The most aggressive bloodsuckers were 8 species (38%): Simulium (Simulium) jacuticum Rubtsov, 1940, S. (S.) cholodkovskii Rubtsov, 1940, S. (S.) longipalpe Beltyukova, 1955, S. (S.) murmanum Enderlein, 1935, S. (S.) truncatum (Lundstrom, 1911) and Simulium (Schoenbaueria) brachyarthrum (Rubtsov, 1956), S. (Sch.) pusillum (Fries, 1824), S. (Sch.) subpusillum Rubtsov, 1940, from the total 21 species (55% ) of the whole composition. The structure of the complex in different parts of the basin was different: S. brachyarthrum and S. jacuticum were dominated in the middle reach of the Podkamennaya Tunguska, in the tributaries mainly S. jacuticum. Comparison of the findings with the results of previous studies (60s) showed differences in the dominance structure of the bloodsucking complex of blackflies. The dynamics of bloodsuckers was assessed with a maximum in the mid-July. The shift of the phenological season to earlier calendar dates was noted, which makes it possible to lengthen the season of the active attack of bloodsuckers and the possibility of the appearance of a second population increase in August. In the daily activity of blackflies one peak in the morning was fixed with intermittent evening activity, which was more often expressed due to the rapid decrease in air temperature.
KEY WORDS: bloodsucking dipterans, blackflies, Simuliidae, spatial distribution, range, population dynamics, daily activity.