
            -3-

of midges are rivers having complexes of flood plains of
various types, basins along the river valleys and interfluve
reservoirs,

Special place is taken by the shallow water bodies on
the shores of the Azov Sea. Here, below, we illustrate a
brief description of various impounded reservoirs of water
analyzed by us, distributed in different landscapes indicating
the varieties of midges and phases of larvae and pupae discovered 
in these water bodies,

I. <u>River beds and river shores</u>

1. The Severskij Donetz river. In shallow waters and
alone the water line in slimy regions of the shores of this
river we collected, en masse, larvae and pupae of the <u>Culicoides 
nubeculosus</u>, <u>C. puncticollis</u>, <u>C. riethi</u>, <u>C. salinarius</u>,
<u>C. circumecriptus</u>, <u>C. manchuriensis</u>, <u>C. odibilis</u> and to a
lesser content <u>C. punctatus</u>. tn the swampy area of the shore
we determined the presence of pre-imago phases of the 3 latter
species.

2. <u>The Kazennyj Toretz river.</u> The shore is sloping,
silty and overgrown with reads. The river line is well
lighted by the sun and gets a lot of heat. In the silted
regions of the shore along the river line and in the shoally
waters we determined the same 7 species, in masses, as
those observed in the river Severskij Donetz. On the silted
regions of the shore having sparsely growing grass and sedge
we found, the <u>C. salinarius</u>, <u>C. circumstriptus</u>, <u>C. manchuriensis</u>
and less often we came across <u>C. vexans</u>, <u>C. alazanicus</u> and
<u>C. maritimus.</u>

3. <u>The Gruzskij Elanchik river.</u> In the regions of slimy
shores, without vegetation, we found in large nuinbers <u>C.
puncticollis</u>, <u>C. riethi</u>, <u>C. circumscriptus</u>, <u>C. manchuriensis</u>,
whereas in the swamped regions of the shore overgrown with
grass and sparse growths of sedge, larvaea and pupae of the
<u>C. simulator</u>, <u>C. odibilis</u>, <u>C. pulicaris</u> and pupae of C.
ustinovi were discovered.

4. <u>The Bakhmut river.</u> In the regions of shallow water
and slimy shores covered with black mud, without any vegetation 
(water here has high contents minerals), we have determined
        