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ID large flock of mating tiny beetles

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Offline Petrea

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« on: November 22, 2017, 19:05 PM »
Two weeks ago I had a large flock (hundreds) of tiny winged insects sitting on the wall of our house. Not more that 2 mm wide, I think. If I got too close, they let themselves drop down some 10-15 cm, before getting airborne. Some of them were mating. Never seen anything like it. Wonder what they were - and why there (simply a dating show?).

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Offline Clive

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« Reply #1 on: November 22, 2017, 20:28 PM »
Male and female ants....... dispersing.... Many people think that they are all queens but 40 percent are males..... They mate and hopefully she will find a safe place to start a new colony... Fascinating stuff :)
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Offline Clive

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« Reply #2 on: November 22, 2017, 20:30 PM »
Did you take a photo of mating? I wonder if its possible to tell the difference between the sexes???
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Offline Petrea

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« Reply #3 on: November 23, 2017, 08:46 AM »
Lots of them mating. They all look the same - as far as I could see! Didn´t look like ants to me, more beetlelike.
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Offline andyj

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« Reply #4 on: October 18, 2018, 08:39 AM »
Hi,

They look like St.Mark's Flies (Bibionidae).

Cheers

A

Offline Petrea

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« Reply #5 on: October 18, 2018, 19:42 PM »
Hi Andy,

Thanks for your suggestion.

As far as I have been able to find out, the St. Mark´s flies emerge in April, and this was late autumn.  Perhaps the Andalucian species behave differently? (Are they here at all?).

I was starting to think that perhaps Clive was right after all. I have got lots of ants crawling along in the same place!

Saludos
Petrea

PS: Happy to see Iberianatureforum up and running again. I had given it up after not been able to access for a long time. I even deleted the bookmark!!! 

PSS: Ooups, where did the smileys go (fortunately, I´ve saved one!)
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