p 
_which were unfavorable for flight and attack, has some significance for investigations 
of their ecology and organization of rational methods.of struggle with the imago. 
| A series of investigations in the Soviet Union studied the places of daytime 
rest of biting midges in various landscape-geographical zones. Places of daytime 
shelter included trees, bushes, grassy vegetation, holes in the ground, radical pits, 
hollow trees, animal breeding stations. 
| A study of the shelter places of blood sucking biting midges in periods 
| 
| Ch. Y. Remm (1955), H. P. Krishoveina (1956), A. K. Shevchenko (1971) treat the 
basic places of daytime shelter in the forest zone conditions of Estonia, Moscow 
and Ryazansky regions and the Ukrainian Woodland tree vegetation. Other authors 
(VM. Gluchova, 1962; N.P. Glushenko, 1969)--grassy vegetation (in Karely, taiga of 
the upper Leni basin). A very detailed study of places of daytime shelter was provided 
by A.G. Mirzaeva and N.P. Glushenko (1972) in various landscape zones of Siberia, It 
was established that in forest regions biting midges primarily take shelter in the 
crowns of trees, and in mountainous regions of the forest zone--in bushes on the shores 
of reservoirs, in grassy and mossy cover. In forest-steppe zones, the places of 
shelter appear to be thickets of bushes and tree vegetation in river flood lands. 
In the southern regions of the country daytime shelter of biting midges was 
investigated by Sh. M, Dzhafarozim (1964) in Zakavkaz, Wh. M. Muradov (1966), L. R. 
Babadzhanova (1967) in the republics of Central Asia, and M.S. Shakirzyanova (1963, 
1972) in Kazakhstan. Daytime shelter places here include grass, bush, tree vegetation. 
Apart from them, also mentioned as places of daytime shelter are mammal burrows, 
hollows in the ground (Sh. M. Dzhafarov, 1964), sandy burrows, birds' nests (M. S. 
|—Shikirzyanova, 1962), animal breeding stations (Sh. M. Muradov, 1966). 
We carried out investigations of shelter places of biting midges in 1968-1971 in 
the flood lands and hills of the rivers of Northern Donets, Kazenny Torets, Bacinmut, 
Gruzsky Elanchik, on Azovsky shore and between the rivers of the Northern Dontsa and 
the Kazenny Tortsa within the borders of the Donetsky region. 
Material and Methods 
In quality, the method of investigation used (cochineal?) entomological butterfly 
fet for grassy vegetation, bushes, crowns of trees. Apart from that, we used 
sheets of fly paper, measuring 15 x 20 cm, greased with castor oil 
Which were hung in the crowns of trees, in animal breeding stations, in nests of 
sand martins and starlings. During the period of the investigation more than a thousand 
were caught with nets , resulting in a collection of more than 140-examples of 
biting midges. On the fly paper at 50 animal breeding stations, 1435 specimens - 
Were caught. In the starling nests were found 18 specimens, ' in the sand 
Martin nests no biting midges were discovered, In the crowns of trees and bushes, 
blood sucking biting midges were not found despite the multiple collections carried 
out. At the same time, in the grass , during the day time hours , there were discovered 
8species of biting midges Culicoides and Leptoconops borealis: C. pulicaris (25 
specimens) in the meadows of Northern Dontsa and in the settlementsof Koska and Priazov. 
There were also found day time shelters of C. subfascipennis (5S specimens), C. riethi 
(19 specimens), and in the village of Melekino-- L. borealis (15 specimens). In the 
flood lands of the Northern Dontsa were picked up C. reconditus (8 specimens) in the 
day time shelters, as well as C. vexans (13 speciemens), C. maritimus (15 specimens, 
©, machardyi (22 specimens), and in the flood land of the river Gruzsky Elanchik-- 
, alazanicus (18 specimens). In the collections of biting midges carried out in 
daytime hours, isolated individuals were caught, attacking animals on the 
head and lower parts of the leg. Especially during the hours of predominant activity, 
biting midges were encountered in significant quantity. 
