Insect and Spider Identification: Swarm of large fruit fly/gnat like bugs on front of my house, 0 by jenn5175

jenn5175 wrote:
I came home today to about a hundred little (maybe 1-2cm long) flying insects. They remind me of fruit flies or gnats but much larger. They are reddish brown in color, see-through bodies, 1 set wings that stay folded on back and only as long as their body (or just barely longer). They crack when you crush them so there is some sort of shell. They are all over the front of my house - windows, doors, siding, mailbox, etc. Curiously they aren't anywhere else (side of house, etc). I just had my inside plumbing redone 2 days ago, but the plumbers didn't do anything near the front of my house. Otherwise, there is nothing that has changed in the past day or so to trigger such a swarm. It is almost like there is a smell or something in my house that attracted these guys to flock to the outside wall of my house. Any advice on what they are and how to get rid of them would be helpful!