#1
Hello!
The first one was numerous at rabbit sh** ;-) yesterday(Ostwestfalen/Germany). Length about 5 mm:
These 2-3 mm flies I often found on tree trunks in the last few days. One obviously carries an even smaller mite.

#3
Hello, Nikita!
Nikita Vikhrev wrote:
Yes, Juergen, two Sphaeroceridae, but the 3-d one (with mite) - not.
Thanks! What could No 3 be then? Drosophilidae?