Dawn and dusk
No they are not. If they're yellow for a long time they might be.
Asian tiger mosquito or forest day mosquito(Aedes albopictus)
during school hours
20th august
Day
they only bite at day
It is subjective to determine the "worst" predator, but some of the most efficient predators on Earth include killer whales, saltwater crocodiles, and humans. Each of these predators is highly skilled in capturing and killing their prey.
9/11 is the worst day in the usa
dead
time more time
at least 10
some mosquitoes bite when they're hungry, no matter the time of day. In the Mediterranean area the common mosquitoes tend to wait until dark, but in recent years there has been an invasion of "Asian tiger mosquitoes" (AKA "forest day mosquito") which bite at any time of day, making it much more difficult to enjoy time outdoors in summer :-(