From one to four hovering males
When one male is hovering above a female a second male may join. After a period of the order of one second a column of two hovering males may have originated. The way in which this addition occurs is fairly standard.

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Fig 1 : One male hovering above a female.

 

How a second male will join a hovering male is explained in Fig 2. In the left picture Fig 2a male A is hovering above the female and male B is coming in at the right. The female is indicated by a red circle. In Fig 2b male B is touching the first male by its legs. Male A is giving place to B and male B is touching the female (Fig 2c). A the end maleB is hovering above the female and male A is hovering above male B.

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Fig. 2


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Fig 3 : Two males hovering above a female.

 

More males may join the column until four males are hovering in a column above the female (Fig 4).

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Fig 4 : Four males hovering above a female.

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