I got to work today, and on the door to the office, there was hundred of dead mosquitos on the door/wall/groun

Question

I got to work around 7 am this morning. On the door that leads into the office building (there is a small window on the door and the light in the office is kept on all night) I noticed about twenty mosquitoes on the glass part and realized there was close to 100 on the door itself and several hundred more on the wall surrounding the door and several hundred I noticed dead on the ground. I also believe over half if not all the mosquitoes on the door/wall are also dead. The office building is only a couple weeks old and the office employees are kind of worried about this. Does anyone know what is causing the mosquitoes to attract to the building and why are they all dead?

Answer 1

Probably bad smells

They were probably exterminated

Answer 2

Are you sure they are mosquitos?  I get the same kind of thing on my house after a rain or a heavy dew, when large gnats hit the window and seem to stick.  Reading your post, it occurred to me that the gnats I have could easily be mistaken for young mosquitos.

The other thought I have is that if they are mosquitos they might have been weakened by a spraying program or other pesticide.  Do you know if the community where your office building is sprays for mosquitos at night?