You can be following a mosquito with all your attention, and suddenly they just dissapear and no amount of looking around, even with a bright flashlight, will be enough to find them.
Until you give up, go do something else and they come back.
They're clever enough to not move once hidden so making noise, light, or flailing around nearby won't make them fly away and reveal their hiding spot. But that's also their downfall when you do spot them.
Cursed fucking creatures. They're optimized to perfectly ruin a good night's sleep, and for no good reason. A sufficiently pissed off human in an enclosed space always wins. The poor things get hungry first.
I am both amused and annoyed at their abilities.