As far as I could tell there was nothing flying closer to the city. Couldn't find anything in Somerville, Allston or JP. Fingers crossed for today.
I do wonder if local weather conditions can make small-clustered flights occur, and that makes the difference when the larger flights occur when conditions in a region are more uniform. I didn't see anything flying while the winds yesterday were gusting pretty heavily. Last night when I went out, it was hot and humid, and it was dead-calm winds wise. I also have observed Camponotus for sure flying in late afternoons, so night is not a required for flight. Obviously local conditions were right as quite a few things mating last night. The grey tree frogs were also in full swing, probably loudest all season. Several types of insects were quite busy as well.
Weather conditions last night during flight at 9pm:
74.7F
58% humidity
Barometer 29.83
No wind
Rain: 1.36" approx 48 hours prior
Observation #2: When temps dropped to 72 around 10:10pm, flights seemed to tail off. Not sure if time, temp, or other reasons caused flights to tail off.
Ya it was fairly windy all day/night near the city yesterday. I have also noticed Camp. like to fly late afternoon and dusk time. Today is not as windy here so I have a feeling we will see them fly closer to the city this afternoon.