So we just returned from a post-sunset neighborhood walk (hillside east of Lincoln Park), during which, clouds of tiny flies seemed to follow us every step of the way. Thought maybe it was just us. Then, as soon as we walked into the house and checked e-mail, the WSB inbox yielded this note from “DC”:
I live right near Ercolini Park and there have been a TON of nasty little flies all over the place this evening. Anybody know what causes that phenomena, and why this time of year? Seems weird.
We’ll fly into research mode – but in the meantime, maybe you’ve already got the answer? ADDED 6:55 PM: WSB contributing photojournalist Christopher Boffoli wonders if these might be the culprits – he says there were “millions” in his garden this afternoon: