Authors:
A. I. BARASHKOVA, doctor of biological sciences, senior research associate,
Yakut Scientific research Institute of Agriculture named after M. g. Safronov (23/1 Bestuzheva-Marlinskogo Str., 677001, Yakutsk)
Abstract. Recently, there has been noted the increase in the number of livestock in Yakutia, which leads to the expansion of agrolandscape. Despite the relative study of the species composition, the features of ecology of blood-sucking dipterous insects on the vast territory of Yakutia agricultural lands remain unexplored. In this connection, the goal was to establish the features in the faunal complex of the flies in the agrocenosis of Central Yakutia as an element of ecological monitoring. Stationary observations and studies were performed in 2002–2015 in Central Yakutia. To collect the flies on the pastures a trap developed by S. D. Pavlov and R. P. Pavlova (1986) was used. The records were conducted during the hours of the greatest activity of the flies in two replicates within one hour. A total of 12 counts were taken and 976 flies were collected. On the steppe pasture, 14 species and 1 subspecies of flies have been identified. Mass species here were Hybomitra montana montana (ID 52.66 %), H. ciureai (ID 18.64 %) and H. lundbecki lundbecki (ID 13.11 %), numerous H. arpadi (ID 4.91 %), H. nigricornis (ID 2.86 %) and H. nitidifrons (ID 2.25 %). In total, these 6 species accounted for 94.43 % of the collection, while the small H. lurida, H. distinguenda and H. lundbecki sibiriensis for 4.59 %. The remaining 5 species and 1 subspecies were rare and accounted for 0.98 % of charges. The fauna of the flies collected by the traps on the pasture of the farm animals of Central Yakutia coincides with the data of T. T. Vasyukova on the Leno-Amga plateau. In the collections, only 4 insects from the genus Chrysops were found, belonging to the four species Chr. validus Lw., Chr. nigripes Ztt., Chr. ricardoae jakutensis Ols. and Chr. divaricatus Lw. For steppe pastures Chrysops divaricatus is indicated for the first time.
Keywords: flies, insects, fauna, records, alas, pasture, cattle, horse, trap.
