The Spider and the Ant

Dear All – having been weighing and counting ants on the Whistling Thorns for some research work related to my PhD. There are a few alates around – these are the winged reproductive forms of ants… Each colony produces many hundreds, even thousands of alates that take off into the sky as part of a synchronised mating flight. Female alates become future queens, they are larger than the males. Male alates only live for the day of the mating flight – they have one chance to mate. They can never return to their colony once they depart. All of them will die within a day of departing on the mating flight…

Here is an illustration of the alates of the three common ant species on the Whistling Thorn trees in East Africa:

Alates – winged queens and males of the Whistling Thorn ants (the black bar is for scale – it represents 1 cm or 10 mm)

Most of the them don’t make it and end up as food for birds, other ants and spiders.

I found this Jumping Spider eating a freshly captured young foundress queen…

Jumping Spider with Acacia-ant alate (winged queen)

The spider lives among the ants and dodges them by constantly keeping on the move, occasionally nabbing one of the hapless ants for a snack! Jumping Spiders are ambush predators that use their athletic skills and fantastic vision to capture prey. They have more than two pairs of eyes (in fact 4 pairs in total, with two pairs facing forward that are very well developed…)

How many eyes can you see on the spider?

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